Central boiler hot water space heating

This system uses a central boiler (or multiple boilers) to heat water that is distributed through a series of pipes to heat the building. The boiler can also be used as a source for domestic hot water.

The hot water heating system can consist of hydronic fan coil units, a radiant floor, hydronic baseboards or combinations of all three systems. Heating can be zoned for individual rooms or area thermostatic control.

The boiler can also be used for domestic hot water, which is isolated from the main boiler water heating system via a heat exchanger. This means the space heating water can have anti-freeze or other chemicals added so it can be used to melt snow outside the building, if desired.

Special design considerations and sizing guidelines must be followed when considering a hot water heating system. These guidelines can be found in publications like the ASHRAE handbook, or in documents published by trade associations such as the Thermal Environmental Comfort Association (TECA) .

NOTE: Municipal regulations should also be checked.

Rebates that add comfort and energy efficiencyDiscover how to add the comfort, convenience and efficiency of natural gas to your next project. We’ll work with you every step of the way. We can help your customers reduce their energy costs, and you may qualify for financial incentives through FortisBC.

Learn more at fortisbc.com/businessoffers. Or contact a FortisBC energy solutions manager near you at fortisbc.com/energyteam.

12-356.1_CentralBoilerHot Water Space Heating_P3.indd 1 10/24/2013 10:43:54 AM

2

CENTRAL BOILER HOT WATER BASEBOARD — FLOOR PLAN

Scale: NTS

DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.

ENCLOSED SUPPLY PIPEDOWN TO BASEBOARD

SUPPLY PIPE IN FURREDBULKHEAD (CEILING LEVEL)

RETURN PIPE UP PIPE ENCLOSURE TO PIPING IN FURRED BULKHEAD

RETURN PIPE TO CORRIDOR IN FURRED BULKHEAD

SUPPLY AND RETURNPIPING IN CORRIDORCEILING SPACE

SUPPLY PIPE FROM CORRIDOR IN FURRED BULKHEAD

SUPPLY PIPE DOWN IN PIPE ENCLOSURE TO BASEBOARD

THERMOSTAT (TYP.)

T

TYPICAL CONTROLVALVE

TYPICAL ACTIVELENGTH OFBASEBOARD

SUPPLY PIPE UP PIPE ENCLOSURE TO PIPING IN FURRED BULKHEAD

12-356.1_CentralBoilerHot Water Space Heating_P3.indd 2 10/24/2013 10:43:55 AM

3

CENTRAL BOILER HEAT PUMP SYSTEM/FAN COIL — DROP CEILING — FLOOR PLAN

Scale: NTS

DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.

THERMOSTAT (TYP.)

T

HORIZONTAL HEAT PUMPFAN COIL(IN CEILING SPACE)

TYPICAL SUPPLYAIR DUCT

SUPPLY ANDRETURN PIPING RETURN AIR GRILLE

12-356.1_CentralBoilerHot Water Space Heating_P3.indd 3 10/24/2013 10:43:55 AM

FortisBC Energy Inc., FortisBC Energy (Vancouver Island) Inc., FortisBC Energy (Whistler) Inc., and FortisBC Inc. do business as FortisBC. The companies are indirect, wholly owned subsidiaries of Fortis Inc. FortisBC uses the FortisBC name and logo under license from Fortis Inc.

(12-356.1 01/2013)

CENTRAL BOILER — RADIANT — FLOOR PLAN

Scale: NTS

DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.

T

T

HW SUPPLY & RETURN MANIFOLDS C/W VALVES & PUMPSS & R PIPES DROP TO RADIANT PIPES IN FLOOR SLAB

SUPPLY & RETURN PIPING TO CENTRAL BOILER

TYPICAL THERMOSTATTO CONTROL VALVE

TYPICAL RADIANTHW PIPINGIN FLOOR

RETURN PIPING IN FLOOR SLAB

SUPPLY PIPINGIN FLOOR SLAB

12-356.1_CentralBoilerHot Water Space Heating_P3.indd 4 10/24/2013 10:43:56 AM