CASE STUDY: Detached House with Detached Boiler Room

Detached House with a Detached Boiler Room

A Baxi multiheat 2.5 (25 kW output) wood pellet boiler, installed in an external boiler house, provides central heating and mains pressure domestic hot water to a four bedroom house with three bathrooms. There is also a thirty tube solar array which significantly contributes to both the domestic hot water and central heating.

At the heart of the system is a three hundred litre thermostore cylinder which is heated directly by the boiler and indirectly by the solar through a coil at the bottom of the cylinder. 

The domestic hot water is exchanged at the top of the cylinder and passes through a blend valve to control the temperature of delivery. 

Central heating is drawn from the middle of the cylinder and uses the system water directly to the radiator circuit and a in an auxiliary mains pressure cylinder for the bathrooms. The upstairs and downstairs radiator circuits are controlled by wireless programmable thermostats.

PROS:

-          Utilises garden shed

-          Semi automatic pellet burning boiler

-          Reduced fuel costs by 60% compared with oil

-          Solar input also reduced pellet costs

CONS:

-          No pellet store close to boiler, thus labour intensive

-          Need a large, dry area to store pellets

GOOD FOR:

-          Detached town house with large garden

FoFor more information on this case study or others, please call us on 01579 345018 or email sales@stoveshop.co.uk