ASHP Install costs

[Farmerboy]

After some help with rough pricing as I haven't time to get proper quotes before property deadline.

Very small 2 bed single storey property, ashp is a sensible way to go as currently no heating, just looking to know what people have paid/quoted?

Property will be insulated properly with new windows etc, solar not out of question to help woth running £££

Thanks

[sherman]

Is there mains gas to the property?

[Andeh1]

£9-10k maybe, without gov grants maybe? New pipework, big radiators etc.... So hard to estimate tbh!

[gotoPzero]

I think octopus (and others) have online estimators where you can spec online incl details.

[Cheib]

I’d say more than £10k….labour on install for a new whole house heating system will be a few £k. If it is done properly to allow each rad to be balanced each rad will be on its own circuit from the manifold. So there’s a decent amount of materials in that. Rads another £2k…new hot water tank etc.

[skeeterm5]

Cheib said:

I d say more than £10k .labour on install for a new whole house heating system will be a few £k. If it is done properly to allow each rad to be balanced each rad will be on its own circuit from the manifold. So there s a decent amount of materials in that. Rads another £2k new hot water tank etc.

I agree, northward of £10k.

If there is no heating you need to add the cost of a full UFH and possibly radiator set up and then making good. If the floors are concrete then unless you want to raise the floor height additional costs for digging down and so on.

Not an insubstantial job.

[Skyedriver]

8 years ago, west Scotland, 4 bed bungalow, ASHP, full wet rad and hot water set up =£15K
You'll need to include for all the additional insulation required.

[OutInTheShed]

You could look at aircon type solutions, if it's only a few rooms?

Operators like Octopus are offering some cheap systems with the government grant.
If you have no radiator plumbing currently, then that adds a fair bit of work, but sometimes it's easier than others.
Installing radiators is DIY-able.

OTOH, if you have to pay someone to redecorate after having the rads put it, that costs.


There's possibly an argument for not bothering with ASHP heating the water tank, the new tank takes a very long time to pay for itself relative to an immersion heater.

[Farmerboy]

Thank you

To answer, no gas for miles, oil is king here but as a new system.needes I'm not convinced its the winner for a small.property and for rental the oil level will always be a loose.

Install costs are levelled slightly as there are no rads, there is no pipework to speak of so either way its a new system, the cost will be the difference from a new oil boiler, new oil tank and suitable size rads compared to ashp and a hot water boiler, electric for sinks and shower?

To add to answer comments, making good and insulation already costed as this is a roof off project

Edited by Farmerboy on Wednesday 15th October 10:37

[TheLurker]

Cheib said:

I d say more than £10k .labour on install for a new whole house heating system will be a few £k. If it is done properly to allow each rad to be balanced each rad will be on its own circuit from the manifold. So there s a decent amount of materials in that. Rads another £2k new hot water tank etc.

Out of interest, why do you think a manifold is needed? I'm looking at putting an ASHP in over the next couple of years and trying to understand the work required to upgrade the heating system (as there will be a bit of a renovation going on at the same time). Was looking to ensure a main 22mm pipework around the house with 15mm radials from it to each radiator. I believe that's the standard practice? I thought manifolds were a microbore only thing?

[Flooble]

Heatgeek have a good online calculator which gives realistic pricing.

When I plugged in our details, for example, it estimated that post-grant the cost would be 6.5K.

[tomsugden]

As someone else has suggested, look at air conditioning. We've just had 2 outdoor and 6 indoor units installed at a cost of £8k. They heat as well as cool, and as our house is on oil heating we wanted to eliminate oil as much as possible. We've turned off the rads in all the rooms with an aircon unit, and have the units scheduled to heat morning and evening. The oil now just heats water, and heats the hall, landing and bathroom. In time we will eliminate that too.

[Ardennes92]

I would have thought that a clean sheet install should include looking at A2A as a solution, not necessarily the only way to go, but for an idea maybe worth looking at Tim & Kat’s green walk YT channel.

[Bowks]

Just had mine installed, 12Kw ASHP, massive hot water tank and heating buffer tank, 6 new radiators, 15k fitted, 7.5k back on the grant
So far very happy.

[Cheib]

TheLurker said:

Cheib said:

I d say more than £10k .labour on install for a new whole house heating system will be a few £k. If it is done properly to allow each rad to be balanced each rad will be on its own circuit from the manifold. So there s a decent amount of materials in that. Rads another £2k new hot water tank etc.

Out of interest, why do you think a manifold is needed? I'm looking at putting an ASHP in over the next couple of years and trying to understand the work required to upgrade the heating system (as there will be a bit of a renovation going on at the same time). Was looking to ensure a main 22mm pipework around the house with 15mm radials from it to each radiator. I believe that's the standard practice? I thought manifolds were a microbore only thing?

We've got a fairly large system...old house.

The installers are "Heatgeek" certified but I am sure different houses require different solutions.

To balance the heat demand/output of each room the flow rate for each rad is can be changed at the manifold. The radiators do have theromostats but they are all fully on so in theory should never be touched

Pipework is all new so not because it is microbore. In our case radials are 16mm and the main is I think a bit larger than 22mmm....can't quite remember. As I said it's a big old house so there's a lot of big rads upstairs and a large area of UFH downstairs. The good news is the house is warm and we've got low flow temps...which I understand flow rates are a key component of.

Edited by Cheib on Wednesday 15th October 18:27

[langy]

Bowks said:

Just had mine installed, 12Kw ASHP, massive hot water tank and heating buffer tank, 6 new radiators, 15k fitted, 7.5k back on the grant
So far very happy.

Similar, but for a 7.8Kw ASHP - £14k (less the £7500 grant)