ADVANTAGES OF RADIANT HEATING AND COOLING SYSTEMS

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ADVANTAGES OF RADIANT HEATING AND COOLING SYSTEMS DELIVERING HEALTH, SAFETY AND WELFARE WITH IMPROVED HEATING AND COOLING

AIA/CES COURSE REH23D

Credit for this course is 1 AIA HSW CE Hour

© Ron Blank & Associates, Inc. 2013

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An American Institute of Architects (AIA) Continuing Education Program

Approved Promotional Statement:

Ron Blank & Associates, Inc. is a registered provider with The American Institute of

Architects Continuing Education System. Credit earned upon completion of this program will

be reported to CES Records for AIA members. Certificates of Completion are available for

all course participants upon completion of the course conclusion quiz with +80%.

Please view the following slide for more information on Certificates of Completion through

RBA

This program is registered with the AIA/CES for continuing professional

education. As such, it does not include content that may be deemed or

construed to be an approval or endorsement by the AIA or Ron Blank &

Associates, Inc. of any material of construction or any method or manner

of handling, using, distributing, or dealing in any material or product.

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An American Institute of Architects (AIA) Continuing Education Program

- Course Format: This is a structured, web-based, self study course with a final

exam.

- Course Credit: 1 AIA Health Safety & Welfare (HSW) CE Hour

- Completion Certificate: A confirmation is sent to you by email and you can print

one upon successful completion of a course or from your RonBlank.com

transcript. If you have any difficulties printing or receiving your Certificate please

send requests to [email protected]

- Design professionals, please remember to print or save your certificate of

completion after successfully completing a course conclusion quiz. Email

confirmations will be sent to the email address you have provided in your

ronblank.com account.

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COURSE DESCRIPTION

- “This seminar provides a fundamental understanding of the benefits of radiant heating and

cooling systems for residential, commercial and institutional applications.”

Why is this course relevant?

i. Combined radiant heating and cooling systems provide uniform and efficient heating and

cooling, and are a cost effective way for your building to achieve a higher level of energy

performance

ii. Radiant systems can improve comfort while reducing energy for heating and cooling,

and reduce operational costs and maintenance costs

iii. Radiant is easily integrated into the mechanical environment of a building and can be

combined with geothermal and traditional HVAC for higher performing hybrid systems

iv. Since radiant pipes are embedded in floors, walls or ceilings, there is more available

space on floors and less space lost to ductwork

v. Many designers use radiant heating and cooling systems to improve energy efficiency

and comfort, and to achieve green/sustainable certifications and recognition

“ADVANTAGES OF RADIANT HEATING AND COOLING SYSTEMS”

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LEARNING OBJECTIVES OF THIS COURSE

1. Explain the four basic types of radiant heating installations

2. List the six primary benefits of radiant heating systems

3. Explain the four basic types of radiant cooling installations

4. List the five primary benefits of radiant cooling systems

5. Recognize the advantages of combined radiant heating/cooling systems

6. Indicate feasible applications for radiant heating and cooling technology

BY THE END OF THIS COURSE, PARTICIPANTS SHOULD BE ABLE TO:

Explaining radiant heating/cooling

systems to clients!

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PROLOGUE: RADIANT HEATING SYSTEMS

WHAT IS A RADIANT HEATING SYSTEM?

- Radiant heating systems work by circulating

warm water through a network of polymer

pipes installed in floors, walls or ceilings

- Radiant heating systems provide warm, gentle

heat unmatched in comfort, control, flexibility

and efficiency

- Hydronic radiant heating has been used for

more than 75 years

- Modern radiant heating systems are reliable

and affordable

- Radiant heating is a great choice for today’s

energy-conscious builders, architects,

engineers and owners

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1. TYPES OF RADIANT HEATING INSTALLATION

i. Structural concrete slab installation

ii. Suspended wood floor overpour installation

TWO PRIMARY TYPES OF POURED OR “WET” INSTALLATION TECHNIQUES

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TYPES OF RADIANT HEATING INSTALLATION

- Follow normal slab design with required insulation below

- Pipe located within slab (midway) or at bottom for slabs 5 in. thick or less

Typical components from top down:

Slab with PEXa pipe

Rigid insulation

Vapor barrier

Crushed stone subgrade

i. STRUCTURAL CONCRETE SLAB FLOOR

TYPICAL ARRANGEMENT

1

2

3

4

1

2

3

4

Note: 2” (50 mm) insulation (R-10 for EPS) is recommended at slab edges and below slabs

Suspended slabs (over unconditioned cold air) may require even more insulation

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- Thin pour is 1 1/2 in (38 mm) height (typical)

- Minimum coverage above pipes must be 3/4 in (19 mm) to avoid heat striping or

weakening the thermal mass

- Overpour may be Gypsum Cement concrete or Portland Cement concrete

- Ensure that subfloor is designed for the “dead weight” of 13-18 lb/ft2

- Coordination of trades is important to minimize work stoppage, damage to pipes, thermal

mass overflows, etc.

- Insulation, wire mesh, double baseplates, “dams” around holes, etc. all must be done in

the proper order

1 1/2” total

Minimum 3/4”

above pipes

i. SUSPENDED WOOD FLOOR OVERPOUR

TYPICAL ARRANGEMENT

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i. Above floor panel systems

ii. Below floor (joist space) plate systems

TWO PRIMARY TYPES OF PANEL OR “DRY” INSTALLATION TECHNIQUES

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- Above floor panel systems are lightweight, efficient alternatives to overpour installations

- They usually require far fewer changes to construction of the building

- No moisture is added to the project (like with overpour), avoiding those delays

- Dry panel systems can offer better efficiency and faster response time

i. ABOVE FLOOR PANEL SYSTEMS

TYPICAL ARRANGEMENT

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- Pipes, the aluminum heat transfer plates, the air cavity in the joist space and the subfloor

make up the “thermal mass”

- Aluminum heat transfer plates are very important for comfort and response

ii. BELOW FLOOR JOIST SPACE SYSTEMS

TYPICAL ARRANGEMENT

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i. Structural concrete slab installation

ii. Suspended wood floor overpour

SUMMARY

i. Above floor panel systems

ii. Below floor (joist space) plate systems

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2. BENEFITS OF RADIANT HEATING SYSTEMS

Radiant heating systems provide

warm, gentle heat unmatched in

comfort, control, flexibility and

efficiency

Six primary benefits:

a) Adaptability

b) Architectural freedom

c) Thermal comfort

d) Control

e) Efficiency

f) Safety

- An element of “Green” design

ADVANTAGES FOR EVERYONE

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a) ADAPTABILITY

1 - Applications:

- Use in floors, walls or ceilings

- Heat the entire building with radiant

floor heating (RFH), or mix it with

other hydronic emitters

- Radiant is zoneable

2 - Heat Sources:

- Virtually any source of “warm” water

can power a radiant system

1 - ADAPTABILITY WITH APPLICATIONS

2 - ADAPTABILITY WITH HEAT SOURCES

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ADAPTABILITY WITH APPLICATIONS

- Use as the primary heating system

- High outputs are possible

- Capable of more than 32 BTU/hr(ft2)

- Use for floor warming

- In tiled or hardwood areas, with sensors

- Radiant can be installed in almost any panel

- Floors, walls or ceilings

- Use as part of a “Hybrid” system

- Combine with radiators, panel radiators or

hydronic fan coils in other parts of the house

HEAT FLOORS, WALLS OR CEILING

HEAT THE ENTIRE BUILDING, OR PARTS OF IT

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ADAPTABILITY WITH HEAT SOURCES

Examples:

1. Condensing boiler - “Mod/Con”, for low temperature applications, high efficiency

2. Solar collectors - with storage tanks and water temperature mixing control device

3. Non-condensing boiler - for mixed high temperature/low temperature applications

4. Electric boiler - easy to control and install

5. Geothermal ground source heat pumps (GSHP)

VIRTUALLY ANY SOURCE OF ‘WARM’ WATER IS ACCEPTABLE WITH RFH

SOME HEAT SOURCES CAN DELIVER HIGHER EFFICIENCY WITH RADIANT

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ADAPTABILITY WITH HEAT SOURCES

Integration with GSHP

- A ground source heat pump is usually

a perfect match of water temperatures

with radiant distribution for heating and

cooling

- 115°F output temperature works well

for most radiant heating systems

- Most heat pumps will operate at a

higher efficiency (deliver a better COP)

when used with low-temperature

radiant heating distribution

- The lower the better

VIRTUALLY ANY SOURCE OF ‘WARM’ WATER IS ACCEPTABLE WITH RFH

SOME HEAT SOURCES CAN DELIVER HIGHER EFFICIENCY WITH RADIANT

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b) ARCHITECTURAL FREEDOM

- Hot air convectors can be bulky, may

restrict placement of furniture and may

take up valuable floor space

- Not to mention ductwork volume

- Convectors as seen at O’Hare Airport

- Radiant heating pipes embedded within

the floor are invisible and waste no space

- A 1 in. water pipe can carry the same thermal

energy as 10 in. x 18 in. rectangular duct

NO BULKY CONVECTORS OR DUCTWORK

AVOID WASTED SPACE

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ARCHITECTURAL FREEDOM

Example of early radiant floor heating project:

- “Falling Water” house in Mill Run, PA

- Architect Frank Lloyd Wright used wrought-iron

pipes for radiant heating in 1930’s


AVOID WASTED SPACE

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ARCHITECTURAL FREEDOM

- Ductwork is bulky, may restrict placement of furniture and waste valuable floor space

- Radiant heating pipes embedded within the floor are invisible and waste no space

- Ductwork can be reduced for fresh air volumes (commercial)


AVOID WASTED SPACE

Example: Earth Rangers Centre, Woodbridge, ON LEED® Platinum

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c) THERMAL COMFORT

Typical complaints about forced air or hot-water baseboard heating:

1. Inconsistent temperature from minute-to-minute (cycling)

2. Inconsistent temperature within a room, floor to ceiling

3. Inconsistent temperature from one room to another

4. Restricted placement of furniture due to heat emitters

5. Drafts or “wind” blowing when the heat turns on

6. Cold hard surface flooring – I need slippers!

7. Noisy fans or ticking baseboard

8. Ugly air vents and return grates

9. Dusty air and heat emitters

10. Dry air in wintertime

WHAT IS THE BEST DEFINITION OF “COMFORT”?

JUST ELIMINATE WHAT MAKES PEOPLE UNCOMFORTABLE!

- Radiant floor heating can address all these issues!

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THERMAL COMFORT

- With RFH there is some warm air floating in lower portion of the room

- When your feet are warm, your lower body is warm

- There is less hot air at the ceiling, less “stratification”

- Cooler air at head level is fresher, has more oxygen, is not as dry

- Still air means less heat loss from the human body to the air flow

- Eliminates that “drafty” feeling caused by forced air movement

COMFORTABLE TEMPERATURE DISTRIBUTION IN THE SPACE

Optimal Thermal

Comfort Profile

Radiant Floor Heating

Thermal Comfort Profile

Forced Air Heating,

Convective Heating

Temp.

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THERMAL COMFORT

People are exothermic heat generators!

Heat emission from the human body occurs

via four modes of transfer:

- Radiation (~45%)

- Convection (~30%)

- Evaporation (~20%)

- Conduction (~5%)

- Our bodies radiate heat to any surface in

line-of-sight which is cooler than our

surface temperature (85°F - 90°F)

- Cold surfaces surrounding the body increase

heat loss and reduce comfort

IMPACT ON HUMAN COMFORT BY REDUCING RADIANT HEAT LOSS

A HEATED FLOOR PANEL SURROUNDS YOU IN WARMTH WITH A HIGHER MRT

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THERMAL COMFORT

A higher Mean Radiant Temperature reduces the radiant heat loss from human body

- Surfaces are warmer with radiant heating

- Human body radiates less heat to floors, walls and ceilings

- Indoor air does not have to be so hot for comfort

- Indoor air can be cooler and fresher, with better health and comfort

- Use 68°F vs. 72°F indoor design temperature with radiant floors for most applications

IMPACT ON HUMAN COMFORT BY REDUCING RADIANT HEAT LOSS

A HEATED FLOOR PANEL SURROUNDS YOU IN WARMTH WITH A HIGHER MRT

MRT comfort graph originally published in

Architectural Forum, January 1939 Mean Radiant Temperature (°F)

Pink area = approximate comfort zone

Example: MRT = 68F, air = 76F

Example: MRT = 76F, air = 68F

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THERMAL COMFORT

- Cooler air has higher Relative Humidity (RH%)

in winter as compared with hot air heating

- Lower average air temperature of FH leads to

less dry skin, fewer dry throats

- No ductwork is necessary for radiant heating

- Influence of dust/pollen/allergens may be

minimized

- Hard surface flooring is more comfortable, livable

- Easier to eliminate carpet and rugs from

indoor spaces while maintaining comfort

OTHER HEALTH BENEFITS

A HEALTHY HOME OR OFFICE IS MORE COMFORTABLE

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THERMAL COMFORT

Radiant floor heating is more comfortable:

i. Quiet, with no fans, no ticking, no noise

ii. Steady, with even temperatures from minute-to-minute

iii. Invisible, with no holes in the floor, no visible convectors, no moving curtains

iv. Warmer, with heat delivered through our feet and our body surrounded with warm

surfaces

RADIANT FLOOR HEATING DELIVERS BETTER COMFORT

“A WARM FLOOR MAKES A WARM HOME”

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d) CONTROL

In typical residential applications, a radiant

circuit covers about 250 ft2 to 350 ft2

- Control of the flow of water for each circuit is

set or “balanced” by manifold circuit valves

- That means that the right amount of heat

is delivered to each room

Thermostats, actuators and the manifold work

as a system to control room-by-room flows

- Special thermostats are calibrated for RFH

- Low-voltage actuators open and close

manifold circuit valves

Benefits:

- Occupants may desire some rooms to be

warmer than others

- Heat loads change with occupancy

- Room-by-room temperature control optimizes

comfort and efficiency

ZONING IS EASIER WITH RADIANT HEATING, DELIVERING BETTER COMFORT AND EFFICIENCY

Balancing distribution manifold

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e) EFFICIENCY

1. Lower average air temperature and corrected temp. profile reduces heat loss

- Reducing thermostat setting may reduce overall heat loss by 4 - 8%

- Reducing thermostat setting and correcting temperature profile can reduce air

infiltration by 5 - 40%, depending on variables (tightness, room height, etc.)

- Overall heat loss may be reduced by 10 - 25% with radiant floor heating

2. More efficient use of boiler or geothermal heat source

- Condensing boilers can operate more efficiently with lower water temperatures

- Geothermal heat pumps can operate more efficiently at lower output temperatures

3. It’s more efficient/economical to move heat using water vs. air

- Ex: A 3/4 in water pipe can transfer the same heat energy as a 14 in x 8 in duct

- Furnace blower fans draw significant amperage to distribute adequate volume (cfm)

of hot air to heat a space

- A comparable radiant circulator draws 75% - 90% less electrical energy to distribute

the same amount of heat

RADIANT HEATING CAN REDUCE ENERGY COSTS AND GREENHOUSE GAS EMISSIONS

THREE KEY REASONS

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EFFICIENCY

1. Lower average air temperature and corrected temperature profile reduces heat loss

2. More efficient use of boiler or geothermal heat source

3. It’s more economical to move heat using water vs. air

In addition:

- Zoning capability allows temperature reduction of rooms when not needed

- Total savings can be up to 30% or more!

RADIANT HEATING CAN REDUCE ENERGY COSTS AND GREENHOUSE GAS EMISSIONS

THREE KEY REASONS

Conclusion:

- Upfront investment in better systems

pays off immediately in better

comfort and control, and in the long-

term for reduced operating costs,

reduced maintenance, etc.

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f) SAFETY

- Hot water baseboard and other high-

temperature convectors can create

potential safety hazards

- This may be especially important

where children or elderly are present

- As seen at a coffee shop

- Radiant heating systems are usually

designed with floor temperatures no

warmer than 85°F

NO HOT SURFACES

PROTECTION FOR CHILDREN AND THE PUBLIC IN GENERAL

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BENEFITS OF RADIANT HEATING

Six primary benefits:

a) Adaptability


c) Thermal comfort

d) Control

e) Efficiency

f) Safety

- An element of “Green” design

SUMMARY

Page 33

PROLOGUE: RADIANT COOLING SYSTEMS

WHAT IS A RADIANT COOLING SYSTEM?

- Typically designed in conjunction with radiant heating, radiant cooling systems circulate

chilled water through the same network of pipes where warm water circulates during the

heating season

- This network of pipes can turn the floors, walls and ceilings of a conditioned space into

cooled surfaces that evenly absorb heat energy

- Radiant cooling works best in a tightly sealed building that integrates radiant with a

downsized forced-air system to meet the building’s fresh air requirements

Example:

Bilbao International Airport,

northern Spain

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3. TYPES OF RADIANT COOLING INSTALLATION

i. Thermally Activated Slab (TAS),

aka TABS, BKT, or BATISO

- Without insulation underneath

- Heated/cooled floors and ceilings

condition spaces above and below

- Bi-directional

PIPES EMBEDDED IN STRUCTURAL FLOORS OR CEILINGS

ii. Radiant Floor Cooling and

Floor Heating (FCH)

- With insulation underneath to

condition the space above

- Heated/cooled floor

- Uni-directional

Page 35

TYPES OF RADIANT COOLING INSTALLATION PIPES INSTALLED BELOW STRUCTURAL CEILINGS

iii. Radiant Ceiling Heating and Cooling (CHC)

- Installed directly below structural ceilings, either

as panels with embedded pipes, or as pipes

attached to ceiling, then “plastered” over

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TYPES OF RADIANT COOLING INSTALLATION PIPES EMBEDDED WITHIN WALLS

iv. Radiant Wall Heating and Cooling (WHC)

- Small diameter pipes are attached to walls then “plastered” over

- Pipes may be run from the floor as the same circuit, same fluid (left)

- Pipes may be run as a separate circuit (right)

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TYPES OF RADIANT COOLING INSTALLATION

i. Thermally Activated Slab (TAS)

ii. Radiant Floor Cooling and Floor Heating (FCH)

iii. Radiant Ceiling Heating and Cooling (CHC)

iv. Radiant Wall Heating and Cooling (WHC)

SUMMARY

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4. BENEFITS OF RADIANT COOLING SYSTEMS

ADVANTAGES FOR EVERYONE

Hybrid radiant/forced-air cooling systems are

ideally suited to a broad range of commercial

applications and achieve best results when

combined with other energy efficient solutions

in tight building structures

Five primary benefits :

a) Adaptability


c) Thermal comfort

d) Control

e) Efficiency

Example:

YWCA Elm Centre, Toronto, ON LEED® Silver

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a) ADAPTABILITY

- Radiant cooling pipes may be

embedded in floors, ceilings, walls

or other exposed surfaces

TYPES OF RADIANT COOLING SYSTEMS

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a) ADAPTABILITY

- Radiant cooling pipes may be

embedded in floors, ceilings, walls

or other exposed surfaces

- Pipes are in these columns

TYPES OF RADIANT COOLING SYSTEMS

Example:

Pond Residence

at York University,

Toronto, ON

Page 41


Example:

- Pipes are embedded on ceilings, walls, floors, etc.

- Earth Rangers Centre, Ontario

- Ductwork sized for fresh-air and latent cooling

(dehumidification) can be hung without objection

NO BULKY CONVECTORS

Example: Earth Rangers

Centre, Woodbridge, ON

LEED® Platinum

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Example:

- Greatly reduced ductwork in federal office

building, as radiant panels contribute vast

majority of heating and cooling

- No ductwork visible

NO BULKY CONVECTORS

Example: Jean Canfield Building

Charlottetown, PEI LEED® Gold

Page 43

c) THERMAL COMFORT

People are exothermic heat generators!

Heat emission from the human body occurs

via four modes of transfer:

- Radiation (~45%)

- Convection (~30%)

- Evaporation (~20%)

- Conduction (~5%)

- Our bodies radiate heat to any surface in

line-of-sight which is cooler than our

surface temperature (85°F - 90°F)

- In warmer weather, cold surfaces surrounding

the body increases radiant heat loss and

increases comfort

- Radiant cooling = lower modular radiant

technology (MRT) which also reduces air

conditioning loads, air volume, drafts, air

noise, etc.

RADIANT COOLING

IMPACT ON HUMAN COMFORT BY INCREASING RADIANT HEAT LOSS

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THERMAL COMFORT

A cooler Mean Radiant Temperature increases the radiant heat loss from human body

- Surfaces are cooler with radiant cooling

- Indoor air does not have to be so cool for comfort

- Indoor air can be warmer, reducing air volume, noise, drafts, etc.

- Use 76 to 77°F vs. 72°F indoor design temperature with radiant cooling in many

applications

THE EFFECTS OF MRT ON HUMAN COMFORT

MRT comfort graph originally published in

Architectural Forum, January 1939 Mean Radiant Temperature (°F)

Pink area = approximate comfort zone

Example: MRT = 69F

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d) CONTROL

Typical elements:

- Outdoor temperature sensor on the

northern side of the building, not

exposed to direct sunlight

- Humidity and temperature sensor(s)

in each zone to monitor dew points

and set points

- Floor temperature sensor in the upper

level of the thermal mass

- Supply and return fluid temperature

sensors in the piping network

USING CONTROLS FOR COMFORT, EFFICIENCY AND TO AVOID CONDENSATION

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CONTROL

Practice:

- Avoid condensation by keeping coolest

point of radiant system above dewpoint

- Coolest point is the radiant cooling supply

header pipe on manifold

- Monitor dewpoint through humidity and

temperature sensors and maintain a safe

supply temperature by the following:

TSUPPLY ≥ TDEWPOINT + 3°F


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CONTROL

Control systems are available

- Mechanical control of a hybrid radiant

cooling system is typically the role of the

“big three” building management suppliers

- Other firms specialize in this type of

control also


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e) EFFICIENCY

Hybrid HVAC systems utilizing radiant heating and cooling can help to reduce

operating costs when compared with 100% AHU systems

1. Radiant cooling allows a higher space set-point temperature, while still maintaining the

same level of cooling comfort compared to a traditional air handling unit (AHU)

- Loads can be reduced

2. The superior heat transfer properties of water compared to air allows the hydronic

portion of the system to efficiently distribute energy to conditioned spaces

- A 60 watt circulator can deliver the same energy as a 1,500 watt air distribution fan;

a 90% reduction

3. Operating with moderate supply water temperatures allows the integration of renewable

systems such as geothermal heat pumps at maximum efficiencies

- Radiant cooling systems typically work with fluid temperatures of 60F to 63F,

resulting in higher EER ratings in cooling mode

- In addition, the reduction in required maintenance of the radiant system compared to

the 100% air system helps to augment operating cost savings

- No filters, belts, pulleys

RADIANT HEATING AND COOLING CAN REDUCE ENERGY COSTS AND GREENHOUSE GAS EMISSIONS

THREE KEY REASONS

Page 49

EFFICIENCY RADIANT HEATING AND COOLING CAN REDUCE ENERGY COSTS AND GREENHOUSE GAS EMISSIONS

THREE KEY REASONS

Final energy demand correlates directly with building owner’s operating costs

As per study focused on North American buildings in USA climate

0

10,000

20,000

30,000

40,000

50,000

60,000

100% AHU FHC + AHU CHC + AHU TAS + AHU

An

nu

al

En

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y D

em

an

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tu/f

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Auxiliary Radiant incl.Distribution

Auxiliary AHU incl.Distribution

Cooling Production forRadiant

Cooling Production forAHU

Heat Production forRadiant

Heat Production forAHU

-30%

-38% -40%

Page 50

BENEFITS OF RADIANT COOLING SYSTEMS

SUMMARY

Five primary benefits:

a) Adaptability


c) Thermal comfort

d) Control

e) Efficiency

Page 51

5. ADVANTAGES OF COMBINED RADIANT HEATING AND COOLING SYSTEMS

- Where specifiers have chosen radiant heating, they can easily take advantage of the

cooling potential in the existing PEXa piping network

- Addition of radiant cooling capabilities minimally increases the initial cost of radiant

heating, and has many advantages during operation

- Radiant cooling transforms the piping network from a heating system to a year-

round building comfort system

- Therefore, many commercial buildings utilize Radiant Heating and Cooling Systems

MULTIPLYING THE ADVANTAGES BY COMBINING THE SYSTEMS

Example: Sweetwater Spectrum

community for adults with

autism, Sonoma, CA

Page 52

ADVANTAGES OF COMBINED RADIANT HEATING AND COOLING SYSTEMS

Six primary benefits of combined RH and RC systems:

a) Adaptability


c) Thermal comfort

d) Control

e) Efficiency

f) Safety

MULTIPLYING THE ADVANTAGES BY COMBINING THE SYSTEMS

SUMMARY

Page 53

6. FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING

- Radiant heating and cooling systems are often an element of “sustainable” design

and are specified in many LEED certified projects

COMMERCIAL EXAMPLES ACROSS NORTH AMERICA

There is significant use of radiant cooling

in “very cold” climatic regions

- Where specifiers have chosen radiant heating,

they can easily take advantage of the cooling

potential in the existing PEX network

- Addition of radiant cooling minimally increases

the initial cost and has many advantages

during operation

There is significant use in humid climates

- Cooling projects located in humid regions

demonstrate that results are driven by

successful design, not by the climate

Sampling of radiant heating and cooling projects in NA

Page 54

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING WAREHOUSE CONVERTED TO RETAIL/COMMERCIAL SPACE

PIER ONE SAN FRANCISCO, CA

- Radiant floor heating and cooling system

installed in 1999 in a historic warehouse

located on Pier One, the northernmost pier on

San Francisco's Embarcadero

- According to industry experts, one of the first

documented uses of a radiant floor heating

system also used to cool a building in USA

Page 55

RADIANT FLOOR EXAMPLE APPLIED IN SHOWROOM

MOTORCYCLE DEALERSHIP LIBERAL, KANSAS

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING

Radiant system was combined with air

system to meet customer’s needs for:

- Optimum thermal comfort

- Reduced energy consumption

- Reduced noise

- Avoiding local hot/cold spots

- Project received award from the

Radiant Professionals Alliance (RPA)

Page 56

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING THERMALLY ACTIVATED SLAB APPLIED IN A DORMITORY

POND RESIDENCE AT YORK UNIVERSITY TORONTO, ONTARIO

Page 57

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING RADIANT CEILING EXAMPLE APPLIED IN A UNIVERSITY LIBRARY – LEED® SILVER

LIBRARY AT LOYOLA UNIVERSITY CHICAGO, ILLINOIS

Page 58

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING THERMALLY ACTIVATED SLAB APPLIED TO MULTI-STORY TOWER - LEED® SILVER

YWCA ELM CENTRE TORONTO, ONTARIO

YWCA Toronto Elm Tower, ON

Mixed use women’s shelter, retail,

office space

Complex includes 5-, 10- and 17-

story residential towers, a

restaurant, boutique, and the new

YWCA Toronto corporate offices

Page 59

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING THERMALLY ACTIVATED SLAB APPLIED IN A GOVERNMENT OFFICE COMPLEX

JEAN CANFIELD FEDERAL BUILDING CHARLOTTETOWN, PRINCE EDWARD ISLAND - LEED® GOLD

Page 60

FEASIBLE APPLICATIONS OF RADIANT HEATING AND COOLING ALL APPLICATIONS

SUMMARY

Commercial

i. Hotels

ii. Offices

iii. Restaurants

iv. Warehouses

v. Car dealerships

Civic

i. Libraries

ii. Museums

iii. Town halls

iv. Fire stations

v. Bus stations

Institutional

i. Schools

ii. Colleges

iii. Hospitals

iv. Daycares

v. Senior residences

Industrial

i. Garages

ii. Factories

iii. Warehouses

iv. Aircraft hangers

v. Freezer storage

Page 61

LEARNING OBJECTIVES OF THIS COURSE

1. Explain the four basic types of radiant heating installations

2. List the six primary benefits of radiant heating systems

3. Explain the basic types of radiant cooling installations

4. List the primary benefits of radiant cooling systems

5. Recognize the advantages of combined radiant heating/cooling systems

6. Indicate feasible applications for radiant heating and cooling technology

BY NOW PARTICIPANTS SHOULD BE ABLE TO:

Construction

Automotive

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ADVANTAGES OF RADIANT HEATING AND COOLING SYSTEMS