Hi All.

I am looking to have a heat pump and 250l cylinder installed in Somerset. I have had 2 heat loss calculations and two quotes. Both come to over 12k for a 4/5kw heat pump and cylinder system. The flow and return pipework is already in. UFH and manifold on the ground floor. I don't know how they can justify that cost but unless I can find an alternative I am going to have to go with it. I have already had the BUS voucher (which has expired but I am eligible). I have wasted 6 weeks while my useless plumber goes back and forth with the plumb centre and they are quoting to install a pre plumbed cylinder with a buffer tank. I absolutely don't want/need a buffer tank or zoning. I have had to take out a bridging loan to complete the build so every month wasted is costing a fortune so I am looking at all options, one of which is forgetting the BUS grant/MCS and just getting someone to get on with it, hence my question here. I am all ears if anyone can recommend an alternative course of action.

The heat loss for the house is 3.2 - 3.4kw. MVHR is installed. It is a 3 bed detached new build with UFH on each floor (the first floor is yet to be done but I have a design and think I will get the builder to do this.)

4kW Hiaer heat pump £2050 incl VAT from Wolseley (you may need to buy an indoor unit also now). You will 2x anti freeze valves an isolated valve and couple of flex hoses. Install direct to UFH manifold.

Buy a direct cylinder and just heat via immersion about £500. Any plumber can install your cylinder.

About £3k for parts plus labour to install.

Edited just now1 min by JohnMo