hi im after some advice, im building a granny flat for my elderly mother at the
bottom of my garden, it will only have an electric supply (no gas). its a 35
square meter single storey building, bedroom, shower room, and open plan kitchen
living area. im wondering what the best way of supplying the heating and hot
water would be. the budget is very tight so solar etc isnt an option, im looking
for the most cost effective solution to running costs im on an economy 7 tarrif
thanks for any ideas in advance
But - the important thing is insulation. More of it than you think.
Don't just go with what the building regs require, put _lots_. Double
glaze it - then add secondary glazing too. put a foot in the roof. Fill
the walls with insulation.
The most economic solution will be a heat pump - but whether the cost
will be paid back in the lifetime of the building is another matter.
And I do hope you _do_ have planning permission? And Building Regs? If
you don't they could force you to demolish it!
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