Warm Church in 15 Minutes!
All Saints Church,Hurworth-on-Tees
All Saints Church viewed form the north
All Saints, a Grade II listed Church in Durham Diocese, have found a good long term solution to their heating needs, which provide a warm building, radically reduce their carbon footprint, with minimised disruption to the fabric which will provide a long term financial return for the church. The building was warm and the convector fans effective in boosting the temperature in just a few minutes.
The Biomass Heating System
After an assessment of their heat requirements and careful consideration of the siting options All Saints contracted the Centre for Green Energy to install a 95kw biomass boiler (an ETA PE-K 90). The system includes the biomass boiler, a pellet store and automated feed to the boiler, a buffer tank and a two convector heaters.
A bespoke pellet store was built to fit the small storage area as discreetly as possible, while ensuring the automated flow of pellets was possible and it was large enough for optimize pellet delivery loads. The boiler house and pellet store are located at the south east corner of the church in two alcoves. These are not visible form the main approach on the north side.
The boiler heats a tank of hot water, the buffer tank, which islocated in a cupboard by the south porch entrance. This feeds 3 zones in the church. The upstairs and downstairs of the church rooms (converted from the west nave) are on two separate systems feeding directly form the pressure of the buffer tank. The main body of the church has retained its original pipework and radiators; this wet system is heated through a small heat
The boiler shed and pellet store on the south east corner of the church.
exchanger located next to the buffer tank.
All Saints chose to have two Jaga Unit 70kWConvector Heaters installed at the rear of the nave which are heated from the buffer tank and can be used to rapidly increase the air temperature with in the church. Permission has just been granted to install two additional radiators to assist with getting the heat to the choir stalls.
Finance
The total capital cost of the heating system was £73,000. The church acquired grant funding from a variety of sources to cover the majority of this.
The church had previously been paying £3,500 on gas heating bills annually. Annual biomass pellet costs are anticipated to be similar. The government RHI (Renewable Heat Incentive) payments are calculated to be £5,500 annually for the next 20 years. If there had been no grant funding capital cost would have been recouped in 10 years and the church is predicted to gain a total profit achieved by the church of £80,000 over a twenty year period. As it All saints will start to reap the rewards of their investments much sooner, in effect having their heating costs more than covered for the next 20 years.
The annual carbon dioxide output saved will be approximately 26 tonnes.
The pellet store under construction before it was clad
Looking west from the chancel to the church rooms. The fan heater vents are just visible.