Cool Energy CEiVt9 ASHP - DIY install
Just ordered my Cool Energy CEiVt9 - DIY install, with a 150ltr slimline heat pump cylinder that I found cheap on eBay and no buffer or llh. Will see how it works out 😉
3 bed end of Terrace in rural Somerset, heatloss calcs using the freedom toolkit came in at 6.7kW. New rads throughout on a manifold, single zone, trvs as hi-limit stats upstairs only. Ufh in the new build extension we’re working on.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
I'm always intrigued by projects like yours @hughf. Did you also get the Cool Energy CEiVt9Â online?
Please post photos and updates here. I'm really interested to see how it turns out.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Posted by: @editorI'm always intrigued by projects like yours @hughf. Did you also get the Cool Energy CEiVt9Â online?
Please post photos and updates here. I'm really interested to see how it turns out.
It’s a work in progress Mars. We’ve decided to do one more heating season with our gas boiler and put in a new heating system next spring when we start on our extension. We’re about a year behind schedule. I’m slowly collecting parts as I find them though.Â
I’m not doing it on a shoestring budget, but I also object to paying crazy rates for commercial installers to do what I’m perfectly capable of doing myself, hence my diy mix and match setup.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
This is the current plan. UFH in the extension, close coupled Ts on the return line giving the hydraulic separation for the ufh circuit. Manifold plumbing for the rads (I have the manifolds already), the whole lot as one zone. TRVs acting as hi-limit stats on the upstairs bedroom rads only. I might need an adjustable bypass on the end of the rad manifold, not sure yet.
I’m hoping I can get the weather comp curve set just right so that I can do away with a house stat altogether, just program a nighttime set-back on the weather comp curve. We’ll see how that works out.
If we do end up with a room stat, it will probably be something with a hi and lo limit stop. Min 17, max 21
Heatloss calcs using the freedom spreadsheet comes in at 6.7kW when it’s -3 outside and 21 inside.
Off grid on the isle of purbeck
2.4kW solar, 15kWh Seplos Mason, Outback power systems 3kW inverter/charger, solid fuel heating with air/air for shoulder months, 10 acres of heathland/woods.
My wife’s house: 1946 3 bed end of terrace in Somerset, ASHP with rads + UFH, triple glazed, retrofit IWI in troublesome rooms, small rear extension.
- 26 Forums
- 2,114 Topics
- 46.4 K Posts
- 87 Online
- 3,410 Members
Join Us!
Latest Posts
-
@eliuccio good to hear you’re happy with the install. A...
By Mars , 2 hours ago
-
RE: No-code, plug-and-play monitoring for your heat pump
The issue with the Grant is that you have to wire direc...
By Grantmethestrength , 18 hours ago
-
RE: Is this just haze or something more?
I am not a scientist nor a meteorologist and I know the...
By Toodles , 18 hours ago
-
RE: Benefits of an extra horizontal loop for GSHP
It will improve performance, but by how much depends on...
By Brendon Uys , 23 hours ago
-
RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 2 days ago
-
RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 2 days ago
-
RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 2 days ago
-
Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 2 days ago
-
RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 3 days ago
-
RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 3 days ago
-
RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 3 days ago
-
RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 3 days ago
-
RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 4 days ago
-
@seatonian got your email. Will connect you with a reco...
By Mars , 5 days ago
-
@downfield and @toddles, this isn’t in the settings cur...
By Mars , 7 days ago
-
RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 7 days ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 7 days ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 1 week ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 1 week ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago