Did you know our complete Solar Solution is designed to work perfectly with the Spira Wood Pellet Boiler range?
Condensing Biomass Wood Pellet Boilers
Up to 97% Efficient — Irish Made
With outputs from 6kW to 72kW, the unique Grant Spira Condensing Wood Pellet Boilers combine easy installation with straightforward daily operation and low maintenance. Awarded Best Renewable Energy Product 2011 by the Sustainable Energy Authority of Ireland (SEAI), the Spira range utilises Grant’s exclusive turbulator baffle system and provides a highly efficient, convenient and environmentally friendly way of heating a property.
Single units are available in outputs of 6-26kW and 9-36kW. They come complete with a pellet hopper and feed auger, which automatically supplies the Spira with fuel. There is also the option of increasing the output by utilising two boilers (separately flued) and a central hopper/twin auger arrangement. Models include 12-52kW, 15-62kW and 18-72kW. Using two boilers to achieve higher outputs is very cost effective. When the units are combined their precise electronic burner controls allow both units to modulate as one, down to just 25% of maximum load when the full output is not required. This, combined with the extremely high condensing efficiencies achieved, makes the Spira a unique option when considering a biomass boiler.
The Spira range was the first condensing biomass boiler in the UK to be eligible for the Domestic Renewable Heat Incentive Scheme (launched in Spring 2014).
High Efficiency Wood Pellet Boilers
- Award winning condensing heat exchanger
- DEFRA approved under the Clean Air Act
- Automatic pellet feed and ignition
- Integrated pellet store
- Modulating burner
- Flue box with integral fan/draught stabiliser
- Automatic wash system for condensing unit
- SpiraVAC pellet vacuum system also available
- 2-year product guarantee (subject to Terms & Conditions)
The units are available in:
outputs of 12-52KW with an efficiency of 97.4% gross,
outputs of 15-62KW with an efficiency of 95.2% gross,
outputs of 18-72KW with an efficiency of 93.1% gross.
Grant Spira Wood Pellet Boilers must only be fitted and commissioned by a heating installer who has been fully trained and approved by Grant Engineering. Failure to comply with this may result in the product warranty becoming invalid.
It is important to remember that the installer must be FETAC registered via SEAI to enable the householder to claim the available grant.
Grant Spira models have their own ‘Black’ flue system, which must be used (note: no other make of flue is suitable and will void the boiler warranty).
This 125mm (5”) vertical conventional stainless steel, twin wall insulated flue system specifically designed for use with Grant Condensing Wood pellet boilers. The system is designed so that the stainless steel outer case is load bearing and stainless steel inner liner is free to expand independently to accommodate temperature change.
Available in a range of extension pieces and bends, the system can easily be assembled to fit bespoke situations.
For more details on our ‘Black’ Biomass Flue System, see here »
Watch our handy video on the GRANT Spira Biomass Boiler
Grant have a full range of training videos available on our YouTube channel.
Grant Spira 6-26kW and 9-36kW Boiler with left/right hand hopper
|Grant Spira model||A||B||C|
|6-26kW 110kg left/right hand hopper||518mm||1120mm||1296mm|
|6-26kW 200kg left/right hand hopper||719mm||1120mm||1492mm|
|9-36kW 110kg left/right hand hopper||518mm||1220mm||1296mm|
|9-36kW 200kg left/right hand hopper||719mm||1220mm||1492mm|
Grant Spira 12-52kW, 15-62kW and 18-72kW Boiler with double hopper
|Grant Spira model||A||B|
|12-52kW with double hopper||616mm||1120mm|
|15-62kW with double hopper||616mm||1220mm|
|18-72kW with double hopper||616mm||1220mm|
|Boiler weight (without hopper)*||231.5kg||261.5kg||463kg||493kg||523kg|
|110kg hopper weight c/w auger*||41.35kg||41.35kg||n/a||n/a||n/a|
|200kg hopper weight c/w auger*||77kg||77kg||n/a||n/a||n/a|
|140kg twin hopper weight c/w 2 x augers *||n/a||n/a||42kg||42kg||42kg|
|Flue||125mm (5”)||125mm (5”)||125mm (5”) x2||125mm (5”) x2||125mm (5”) x2|
|Wash system (condensing unit)||15mm compression||15mm compression||15mm compression||15mm compression||15mm compression|
|Flow/return connection||1” female||1 ¼” female||1” female||1” female / 1 ¼” female||1 ¼” female|
|Condensate drain||1 ¼” female||1 ¼” female||1 ¼” female||1 ¼” female||1 ¼” female|
|Water content||51.5 litres||60 litres||103 litres||111.5 litres||120 litres|
For more information on installing the Spira see our Guide to Wood Pellet Boilers Siting and Maintenance here »
This unique heat exchanger on the Grant Wood Pellet Boiler is covered by a 5 year guarantee. All other component parts of the boiler are guaranteed for 2 year from the date of purchase (terms & conditions apply), subject to being installed in accordance with the manufacturers instructions, serviced annually and de-ashed after every 3 tonnes of pellets burnt. For after sales service, please contact our Customer Service Department on (057) 912 0089 or your installer.
After sales service
For peace of mind, the Spira – High Efficiency Wood Pellet Boiler is backed by a national network of service engineers.
In the unlikely event of a problem occurring, your installer should telephone our customer service department on (057) 912 0089.