Re: This months of work from home showed too....
I insisted on the under the floor pipe runs from the boiler to hot water tank and radiators being insulated
Technically, it's a cylinder, not a tank :-)
Yes, I've insulated as much as I can (though we don't actually have a boiler yet), the thing is that you will still want hot water during the summer, but while in the winter the heatloss from those pipes helps to warm the house (though possibly not in the areas you want warming), in the summer you really don't need that!
M.