June 21, 20224 yr Hello I'm interested in installing an ASHP, but quotes from businesses have been very high (£11k to £17k). Ideally I'd like to save money in the long term by switching, so using an installer seems out of the question. I am now considering a DIY install but am not sure if I can. What I wanted to clarify is: Does a heat pump need to be installed and/or commissioned by someone with an accreditation of some kind, or can I do it all myself?
June 21, 20224 yr A monblock ASHP requires some plumbing skills and some electrical skils. Do you have these?
June 21, 20224 yr In answer to your question about specific accreditation, not really. If you purchase a split system you need F Gas certification for the refrigerant gas side of it, not required for a mono block. Ideally a normal qualified electrician and a normal plumper can install the rest. No grants available to you.
June 21, 20224 yr Author Thanks guys. 17 minutes ago, ProDave said: A monblock ASHP requires some plumbing skills and some electrical skils. Do you have these? Yes, and have some support. My father-in-law is a retired gas engineer, and I have a couple of friends that are qualified electricians. I have good confidence that together we could do what's required to install (though I've yet to design a solution) 7 minutes ago, JohnMo said: In answer to your question about specific accreditation, not really. If you purchase a split system you need F Gas certification for the refrigerant gas side of it, not required for a mono block. Ideally a normal qualified electrician and a normal plumper can install the rest. No grants available to you. I hoped that was the case, but some of the content I've read recently, muddied the water. I know there won't be any grants via the DIY route, but so far, the cost after the £5k BUS payment is likely more than doing it myself. I say likely, as I've not designed and priced it yet.. Now that I know that it's a possibility, that's the next step. I'll take a look for schematics etc next to come up with options. Any worthy resources or pointers that anyone can suggest would be greatly appreciated.
June 22, 20224 yr I DIY installed my cheap ASHP from Ebay (good make but old stock). I had to get a qualified plumber to sign off the pressurised DHW tank bit and did the electrics myself (previous knowledge) so yes it is completely doable DIY 👍.
June 22, 20224 yr Author That's great to hear @joe90. I've read a few more posts on this forum and seems like there's a wealth of experience. I'll no doubt tap into it in the coming weeks so that I can progress this
June 22, 20224 yr Author @JohnMo - I missed your post! I'm going to get stuck into that now, thanks very much Edited June 22, 20224 yr by TeaGate
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