This 19th century urban cottage has been extended and refurbished with
underfloor heating across most of the ground floor and in the extension. A
NIBE F2040 air source heat pump replaced a gas-fired combi boiler, and a
solar thermal collector helps to offset the hot water requirement and to
minimise ongoing fuel costs.

A 12kW NIBE F2040 heat pump supplies heat to underfloor heating on
most of the ground floor and in the extension with the remaining heated
by radiators. The heat pump supplies domestic hot water during winter
months. To match peak loads supplementary heating is provided by a small
Burley wood stove.

The cottage is located in a conservation area so to ensure that it is not
visible from a public highway, we mounted a 30-tube solar thermal
collector on the east facing roof of the new extension. This contributes
heat to a NIBE Megacoil 300L unvented hot water cylinder located in a
utility room, reducing the heat pump running costs.