GRANT CONDENSINGOIL BOILERRANGEInternal and external oil-fired
condensing boilers with outputs from 12kW to 70kW
02
Grant Vortex Condensing Indoor Range
Dimensions (mm)Grant Vortex 15-21 Kitchen/Utility
Grant Vortex 15-26 Kitchen/Utility and System
Grant Vortex 26-36 and 36-46 Kitchen/Utility and System
Grant Vortex 46-58 and 58-70 Kitchen/Utility
620
TRAP EXTERNALDRAIN EXITLEFT HAND
TRAP INTERNALDRAIN EXITLEFT HANDHIGH LEVEL
TRAP INTERNALDRAIN EXITLEFT HANDLOW LEVEL
101
370
831
731
1024
170
210
786781
210
594
410
TRAP EXTERNALDRAIN EXITLEFT HAND
TRAP INTERNALDRAIN EXITLEFT HANDHIGH LEVEL
TRAP INTERNALDRAIN EXITLEFT HANDLOW LEVEL
L/H FLOWL/H RETURN
86
566
719
556
441
61
60
TRAP EXTERNALDRAIN EXITLEFT HAND
61
TRAP INTERNALDRAIN EXITLEFT HANDHIGH LEVEL
TRAP INTERNALDRAIN EXITLEFT HANDLOW LEVEL 82
86
603
445
860
712
83
624
177
88
605
TRAP EXTERNALDRAIN EXITLEFT HAND
TRAP INTERNAL DRAIN EXIT LEFT HANDLOW LEVEL
TRAP INTERNAL DRAIN EXIT LEFT HANDHIGH LEVEL
603
Overheat thermostat
Boiler thermostat
Internalcondensate
trap (withexternal option)
Boiler on/off switch
Grant Vortex Kitchen/Utility Models
Model shown: VTX15/21 (front view)
Riello RDB burner with plug &socket connection
VTX15/21 only
348mm wide
Grant Vortex Combi Internal 26e
Grant Vortex Combi Internal 36e
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Overheat thermostat
Boiler thermostat
Boiler on/off switch
System pressure gauge
Internal condensate trap (with external option)
Grant Vortex Kitchen/UtilitySealed System Models
Model shown: VTXS15/26 (front view)
Riello RDB burner with plug & socket connection
Technical Specifications
Model Kitchen/Utility Models Kitchen/Utility System Models
15-21 15-26 26-36 36-46 46-58 58-70 15-26S 26-36S 36-46S
Output kW 15 to 21 15 to 26 26 to 36 36 to 46 46 to 58 58 to 70 15 to 26 26 to 36 36 to 46
Output Btu/h 50-70,000 50-90,000 90-123,000 123-157,000 157-200,000 200-240,000 50-90,000 90-123,000 123-157,000
Flow connection 22mm 22mm 28mm 28mm
Efficiency 93% 95% 97% 92.6% 94.1% 93.6% 95% 97% 92.6%
11/4” BSP 11/4” BSP 22mm 28mm 28mm
Return connection 22mm 22mm 28mm 28mm 11/4” BSP 11/4” BSP 22mm 28mm 28mm
Cold water in (system kit) n/a n/a n/a n/a n/a n/a 15mm 15mm 15mm
Pressure relief (system kit) n/a n/a n/a n/a n/a n/a 15mm 15mm 15mm
Weight (dry) 97kg 130kg 144kg 150kg 268kg 282kg 138kg 167kg 168kg
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: The boiler flow and return connections exit the casing on the left or right hand side. Note 2: Grant Vortex Kitchen/Utility, Grant Vortex internal and external condensing Combi boilers are suitable for fully pumped systems only.Note 3: SAP 2005 annual efficiencies.Note 4: For Combi hot water performance see back page. *System models only
Vortex CombiInternal Models26 36
26 36
90,000 123,000
92.2% 94.2%
22mm 28mm
22mm 28mm
15mm 22mm
Hot water out n/a n/a n/a n/a n/a n/a n/a n/a n/a 15mm 22mm
15mm 15mm
177kg 200kg
24 litre expansion vessel
Boiler on/off switch
Neon diagnostic indicators Electronic
boiler thermostat
Nickel plated pipes
35 Plate heat exchanger
Flexible filling loop
Primary store drain cock
Front service access
Thermostatic blending valve
Heating and hot water selector switches
System pressure gauge
Overheat thermostat
Grant Vortex Combi Internal Models
Riello RDB burner with plug & socket connection
Model shown: VTXCOMBI26 (front view)
Internal condensate
trap (with external option) High efficiency pump
(hot water circuit)
04
Grant Vortex External Range
Dimensions (mm)Grant Vortex External 15-21
Grant Vortex External 15-26 26-36 36-46
385
879
122 122
943
734248
879
788
637
517
307
187
112
124
Grant Vortex External 46-58 58-70
Grant Vortex Combi External 26e and 36e
1154
945233
587
1154 12
40
191 191
1240
1154
1000
816
418
179
68
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Control panel
Optional side flue exit
Optional pipe entry points
Boiler on/off switch
Test switch Boiler thermostat
Overheat thermostat
Grant Vortex External Modules
Model shown: VTXOM15/26 (front view)
Frost stat set to 2°C (factory fitted inside control panel - not shown)
Condensate trap (factory-fitted in rear of casing - not shown)
Riello RDB burner with plug & socket connection
Electronic boiler thermostat
Built-in system pressure gauge
24 litre expansion vessel
Flexible filling loop
Nickel plated pipes
High efficiency pump (hot water circuit)
Thermostatic blending valve
Neon diagnostic indicators
Service switch
Internal condensate trap (factory-fitted in rear of casing) not shown
Boiler on/off switch
Electrical isolation plug
Overheat thermostat
Grant Vortex Combi External Modules
Model shown: VTXOMCOMBI26 (front view)
Riello RDB burner with plug & socket connection
Technical Specifications - Boiler Connections
Model Vortex External Modules
Output kW
Output Btu/h
Flow connection
Return connection
Cold water in (system kit & combi)
Hot water out (combi)
Pressure relief (system kit & combi)
Weight (dry)
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: All boiler connections can be positioned to the left or right of the appliance. Note 2: Grant Vortex Condensing modules are suitable for fully pumped systems only. Note 3: For Combi hot water performance, see page 12.
26
26
90,000
22mm
22mm
15mm
15mm
15mm
206kg
36
36
123,000
28mm
28mm
22mm
22mm
15mm
225kg
58-70
58 to 70
200-240,000
11/4” BSP
11/4” BSP
15mm
n/a
15mm
288kg
46-58
46 to 58
157-200,000
11/4” BSP
11/4” BSP
15mm
n/a
15mm
274kg
36-46
36 to 46
123-157,000
28mm
28mm
15mm
n/a
15mm
168kg
26-36
26 to 36
90-123,000
28mm
28mm
15mm
n/a
15mm
162kg
15-26
15 to 26
50-90,000
22mm
22mm
15mm
n/a
15mm
143kg
15-21
15 to 21
50-70,000
22mm
Efficiency 92.6% 94.1% 93.6% 92.2% 94.2%97%95%93%
22mm
15mm
n/a
15mm
109kg
Galvanisedsteel casing
Galvanisedsteel casing
*Combi models onlyNote 4: SAP 2005 annual efficiencies.
Vortex Combi External Modules
06
Grant Vortex Wall Hung Range
Dimensions (mm)Grant Vortex Wall Hung Internal 12-16, 16-21
580
321.
840
112
321.6
221
112
Grant Vortex Wall Hung External 12-16, 16-21
832.5
836.5
634.4
621
36.6
832.5
349.8 629621
Multi-directional flue (Factory-fitted)
Pressure relief valve
Automatic air vent
Burner
Overheat thermostat
Removable control panel
Internal condensate trap
Drain cock
Boiler on/off switch
Service switch
System pressure gauge
Boiler thermostat
Technical Specifications
Model Internal Models
External Modules
12-16 16-21 12-16 16-21
Output kW 12 to 16 16 to 21 12 to 16 16 to 21
Output Btu/h 40-55,000 55-70,000 40-55,000 55-70,000
Flow connection 22mm 22mm 22mm 22mm
Efficiency 94.9% 93.8% 94.9% 93.8%
Return connection 22mm 22mm 22mm 22mm
Cold water in n/a n/a n/a n/a
Pressure relief n/a n/a n/a n/a
Weight (dry) 86kg 86kg 93kg 93kg
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: The boiler flow connection exits the casing on the top or bottom. Note 2: The return connection is located on the right and the condensate drain on the left.
Grant Vortex Wall Hung Internal/Internal System Models
Grant Vortex Wall Hung External/External System Models
Multi-directional flue options (not supplied) see EZ flue kits
Remote lock-out indicator
Pressure relief valve
Automatic air vent
BurnerOverheat thermostat
Removable control panel
High efficiency Pump
Internal condensate trap
Expansion vessel
Drain cock
Boiler on/off switch
Boiler thermostatSystem pressure gauge
Model shown: VTXSWH12/16 (front view)
Model shown: VTXSOMWH12/16 (front view)
High efficiency Pump
Frost stat set to 2°C (factory fitted inside control panel - not shown)
*System models only
Note 3: SAP 2005 annual efficiencies.
Internal System Models
12-16 16-21
12 to 16 16 to 21
40-55,000 55-70,000
22mm 22mm
94.9% 93.8%
22mm 22mm
15mm 15mm
15mm 15mm
98kg 98kg
External System Modules
12-16 16-21
12 to 16 16 to 21
40-55,000 55-70,000
22mm 22mm
94.9% 93.8%
22mm 22mm
15mm 15mm
15mm 15mm
97kg 97kg
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08
Grant Vortex Boiler House Range
Technical Specifications - Boiler Connections
Model Vortex Boiler House Models
Output kW
Output Btu/h
Flow connection
Return connection
Cold water in (system kit)
Pressure relief (system kit)
Weight (dry)
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: The boiler flow and return connections exit the casing on the left or right hand side. Note 2: Grant Vortex Boiler House boilers are suitable for fully pumped systems only.
*System models only
58-70
58 to 70
200-240,000
11/4” BSP
11/4” BSP
n/a
n/a
301g
46-58
46 to 58
157-200,000
11/4” BSP
11/4” BSP
n/a
n/a
257kg
36-46
36 to 46
123-157,000
28mm
1” BSP
n/a
n/a
145kg
15-26
15 to 26
50-90,000
28mm
1” BSP
n/a
n/a
125kg
26-36
26 to 36
90-123,000
Efficiency 94.1%92.6%97% 93.6%95%
28mm
1” BSP
n/a
n/a
143kg
Note 3: SAP 2005 annual efficiencies.
Top flue exit
Heating flow (under blanking plate)
Stainless steelcondensingheat exchanger
Galvanisedand powdercoated
Condensate trap(Not shown)
Dual stat - comes fitted on 46-58 and 58-70 models
Heating return (under blanking plate)
Grant Vortex Boiler House Models
Model shown:
VTXBH46/58 (front view)
Riello RDB burner with plug & socket connection
Grant Vortex Boiler House 26-36 and 36-46
Grant Vortex Boiler House 46-58 and 58-70
460 600
705
560
191
Flow
Stat
540 868
1022
835
285
Flow
Stat
Dimensions (mm)
431
431 600
714
Grant Vortex Boiler House 15-26
Dimensions (mm)
Grant Euroflame 15-21 and 21-26Utility and System
860
860
712
624
177
88
445
605
TRAP EXTERNALDRAIN EXITLEFT HAND
TRAP INTERNAL DRAIN EXIT LEFT HANDLOW LEVEL
TRAP INTERNAL DRAIN EXIT LEFT HANDHIGH LEVEL
430
Technical Specifications
Model
Output kW
Output Btu/h
Flow connection
Return connection
Cold water in (system kit)
Pressure relief (system kit)
Weight (dry)
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: The boiler flow and return connections exit the casing on the left or right hand side.
Note 2: Grant Euroflame Utility boilers are suitable for fully pumped systems only.
Euroflame Utility Models
15-21
15 to 21
50-70,000
22mm
22mm
n/a
n/a
97kg
21-26
21 to 26
70-90,000
22mm
22mm
n/a
n/a
97kg
Euroflame Utility System ModelsEuroflame Utility System Models
26-35
26 to 35
90-120,000
22mm
22mm
n/a
n/a
127kg
15-21S
15 to 21
50-70,000
22mm
22mm
15mm
15mm
123kg
21-26S
21 to 26
70-90,000
22mm
22mm
15mm
15mm
123kg
26-35S
26 to 35
90-120,000
Efficiency 93% 92.4% 92.1% 93% 92.4% 92.1%
22mm
22mm
15mm
15mm
138kg
Note 3: SAP 2005 annual efficiencies.
Euroflame Utility System Models
Grant Euroflame Kitchen/Utility System Models
Boiler on/off switch
Boiler thermostat
Overheat thermostat
Internal condensate trap (with externaloption)
Front service access door
Multi-directional heating return (not shown)
Multi-directional heating flow (not shown)
12 Litre expansion vessel
High efficiency pump
Model shown: EUROFLAME15/21 (front view)
Riello RDB burner with plug & socket connection
Grant Euroflame Kitchen/UtilityModels
Model shown: EUROFLAME15/21 (front view)
Boiler on/off switch
Boiler thermostat
Overheat thermostat
Internal condensate trap (with externaloption)
Front service access door
Multi-directional heating return (not shown)
Riello RDB burner with plug & socket connection
Multi-directional heating flow (not shown)
CondensateRemovalThe condensate trap is nowfactory fitted within the whitecase on Grant EuroflameUtility boilers, but can also bepositioned externally ifpreferred.
FlueingUtility models are compatiblewith all of Grant’s EZ-Fit flueoptions and capable of beingflued from the top, rear, left or right hand sides of theappliance.
Sealed SystemModelsGrant Euroflame Utility boilersare also available in sealedsystem versions. Theseinclude a factory fittedexpansion vessel, filling loop,pressure gauge, automatic air vent, pressure relief valveand high efficiency circulatingpump, enabling boilers to beinstalled without the need fora feed and expansion tank in the loft.
Grant Euroflame Kitchen/Utility Range
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Grant Euroflame 26-35Utility and System
719
587
441
TRAP EXTERNALDRAIN EXITLEFT HAND
TRAP INTERNALDRAIN EXITLEFT HANDHIGH LEVEL
TRAP INTERNALDRAIN EXITLEFT HANDLOW LEVEL 82
86
603
Grant Euroflame External Range
Dimensions (mm)Grant Euroflame External and External System 15-21, 21-26, 26-35
Optional pipe entry points
Condensate trap
(factory-fitted in rear of casing - not shown)
Model shown: EUROFLAME MOD 15-21 (front view)
Riello RDB burner with plug & socket connection
Grant EuroflameExternal Modules
Optional side or rear flue exits
Boiler thermostat
Overheat thermostat
Technical Specifications
Model Euroflame External modules
15-21 21-26 26-35
Output kW 15 to 21 21 to 26 26 to 35
Output Btu/h 50-70,000 70-90,000 90-120,000
Flow connection 22mm
Efficiency 93% 92.4% 92.1%
Return connection 22mm
22mm
22mm
22mm
22mm
Cold water in (system kit) n/a n/a n/a
Pressure relief (system kit) n/a n/a n/a
Weight (dry) 113kg 113kg 142kg
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: All boiler connections can be positioned to the left or right of the appliance.
Note 2: Grant Euroflame External modules are suitable for fully pumped systems only.Note 3: SAP 2005 annual efficiencies.
*System models only
10
Grant Euroflame Boiler House Range
Top flue exit
Heating flow (under blanking plate)
Stainless steelcondensingheat exchanger
Galvanisedand powdercoated
Condensate trap(Not shown)
Dual stat
Heating return (under blanking plate)
Grant Euroflame Boiler House Models
Riello RDB burner with plug & socket connection
Technical Specifications
Model Euroflame Boiler House modules
15-21 21-26 26-35
Output kW 15 to 21 21 to 26 26 to 35
Output Btu/h 50-70,000 70-90,000 90-120,000
Flow connection 1”GB
Efficiency 93% 92.4% 92.1%
Return connection 1”GB
1”GB
1”GB
1”GB
1”GB
Cold water in (system kit) n/a n/a n/a
Pressure relief (system kit) n/a n/a n/a
Weight (dry) 113kg 113kg 142kg
Condensate pipe 21.5mm OD plastic overflow pipe
Note 1: All boiler connections can be positioned to the left or right of the appliance.
Note 2: Grant Euroflame Boiler House modules are suitable for fully pumped systems only.Note 3: SAP 2005 annual efficiencies.
435 600
715
Grant Euroflame Boiler House15-21, 15-26, 26-35
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435
Dimensions (mm)
GRANT ENGINEERING IRELANDCrinkle, Birr, Co. Offaly, IrelandT: (057) 9120089 F: (057) 9121060 E: [email protected] www.grantengineering.ie
NORTHERN IRELANDUnit 117, 21 Botanic AvenueBelfast BT7 1JJ, Northern IrelandFREEPHONE : 0800 2794796E: [email protected]
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GuaranteesThe unique heat exchanger on the Grant Condensing Boiler iscovered by a 5-year guarantee. All other component parts ofthe boiler are guaranteed for 2 years from the date of purchase(excluding consumable items, labour, handling or shipping),subject to being installed in accordance with the manufacturer’sinstructions. On completion of the installation all GrantCondensing Boilers must be commissioned and the boilerpassport returned to Grant Engineering for registration.
After sales serviceFor peace of mind, all Grant Condensing Boilers are backed bya national network of service engineers.
In the unlikely event of a problem occurring, your installershould telephone our customer service department on: (057) 9120089. All images for illustration purposes only.
Grant Vortex Mag-One Magnetic FilterThe Mag-One (Part code: VM01) providesinnovative protection for your Grant Vortex oil-fired boiler and central heating system up to 36kW. Using a simple to install, triple actionfiltration design, the Mag-One filters magnetiteand non-ferrous debris from central heatingsystems with a 12000 gauss neodymiummagnet.
This brochure is accurate at the time of printing but as Grant Engineering has apolicy of continual improvement it may be superseded. We reserve the right toamend specifications without prior notice. The statutory rights of the consumerare not affected.
All products manufactured under I.S. EN ISO 9001.
™THE GRANT ‘EZ-FIT FLUE’ SYSTEM is a Trade Mark of Grant Engineering Limited.®Grant Aerona, Grant Spira, Grant Vecta, Grant Vortex, Grant Solar, Grant Aurora,Grant Sahara, Grant CombiSOL, Grant WinterSOL, Grant MonoWave, Grant DuoWave,Grant ThermaWave, Euroflame and Multi Pass are registered trade marks of GrantEngineering Limited. The contents of this leaflet are fully protected by copyright andnothing may be reproduced without permission from Grant Engineering.
Flue SystemsAll Grant Vortex oil-fired boilers are supplied for connection toeither a ‘stainless steel’ conventional flue, or one of Grant’sEZ-Fit flue options. The flue systems are available as low level,high level or vertical kits, for internal and external applications,and even as unique EZ-Flexi packs designed to enablecondensing boilers to utilise an existing chimney. All our EZ-Fitflues carry the CE mark of approval, are adaptable to anyinstallation, and deliver excellent value for money.
Typical Hot Water Performance26kW Combi** 17 litres per minute at an average temperature of 50°C.Recovery time 4 minutes approx. Based upon 100 litre draw off.
36kW Combi** 20 litres per minute at an average temperature of50°C. Recovery time 3 minutes approx. Based upon 100 litre draw off.
Mains Water PressureMinimum: 2.5bar (36psi). Maximum: 8bar (115psi).** Hot water flow rate is dependent on mains pressure available.Figures based upon an incoming mains water temperature of 10°C.
FuelAll burners are supplied factory set a the stated output for useon standard grade Kerosene – Class C2. Grant CondensingBoilers are not suitable for use with Class D gas oil.
InstallationInstallation must comply with the current Building Regulations.Comprehensive technical information can be found in theinstallation manual, suppllied with every boiler.
Cert no. SA-COC-001755
Grant Condensing Oil Boiler Range
Grant Solar Solutionsand Cylinders Range
Grant Aerona3
Air Source Heat Pumpand VortexAir OilHybrid Range
Grant EZ-Fit Flue Systems
Grant Back Boilers
Available from Grant Engineering
Grant Wood PelletBoiler Range