CASE STUDY: Four Bedroom Farmhouse

Four Bedroom Farmhouse

In a remote boiler room a Baxi Multiheat 2.5 600f boiler produces hot water for the Farmhouse. At present the fuel is wood pellets but the boiler can be adapted to burn wood chips or even grain.

An underground submain of insulted pipes connects the boiler room to the main house. Then the hot water is delivered to a 300 litre heat store cylinder containing a high efficiency heat exchange coil which delivers mains pressure domestic hot water to the bathrooms and kitchen. The cylinder also supplies a distribution system for three separate radiator circuits: upstairs radiators, downstairs radiators, towel rails and airing cupboard.

These three circuits are separately timed to allow complete control. The cylinder has a 3kW immersion heater fitted for optional use in the summer.

The cylinder also has a coil to accept input from the solar panels on the roof and the control box has a contactor to isolate the immersion heater if the cylinder temperature rises above the set point of 90 degrees. Similarly, if the cylinder is blow the set point of 40 degrees, the radiator circuits are isolated to allow temperature recovery,

The system has been cleansed, flushed and protected with Fernox F1 and filled to a standard ½ bar pressure and sealed. The heat expansion is absorbed by an 80 litre expansion vessel in the boiler room. There is a temperature and pressure relief valve on the cylinder and a pressure relief valve in the boiler room.

PROS:

-          Utilises waste sawdust from joinery and runs farmhouse plus four holiday cottages.

-          Carbon neutral

-          All future systems like this would be eligible for Renewable Heat Incentive.

CONS:

-          Labour intensive

-          Needs a large space for plant and fuel

GOOD FOR:

-          Large estate houses etc

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