Last seen: Oct 1, 2025
Our log burner will be used for supplementary heating when the weather turns and the dark nights draw in. We don't really need to light it, but it's a...
Hi @Graham Brennand, Grant's installers don't seem very consistent on glycol. Grant recommend it, but a lot of their systems, mine include, use water ...
Well ideally @johnmo, but I have a coupe of things that work against that; I have a 22 rad system over 3 floors, 28mm CU primary, 22 and 15mm Cu secon...
@marvinator80 that's interesting. I know from your previous install pictures you would be struggling to make space for an internal volumiser. The 3kW ...
I'd be a little cautious about this generalisation Martin. Most F-Gas refrigerant engineers have specialist training and competency that comes at a pr...
@dodgyknee hi, here's Group 46 parameters changed from default for me, default in [ ] 46 00 = 3 [0] heater enabled in supplementary mode 46 01 = 4...
@dodgyknee this sounds familiar Yup, I played around, got the supplementary heating indicator to appear on the Grant controller, so all appeared to ...
The Grant LLH works well for me with the 3kW immersion programmed to give supplementary heating during defrost mode when the LWT drops below a pre-set...
I had a similar pantomime with my DNO. My incoming fuse is 80A with 25mm2 meter tail L&N incomers from external fuse and meter box to internal con...
@NJT, same here with my experience. 50degC design, which at the time I didn't query. But the same set up is now set to 45degC max, and most of the tim...
When comparing quotes, it's very important to try to ensure technical parity. Very crudely, the higher the system design temperature, the lower to cap...
There's standards and then there's standards, in order of precedence: Legislative, European/international/British, trade/industry codes of practice,...
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@editor I hope you have at least a partially working he...
By GrahamF , 34 minutes ago
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RE: Why Air Release Valves and Deaerators are Non-Negotiable
I confess to the same misgivings! My installer fitted ...
By JamesPa , 2 hours ago
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@drei are taking measurements from the heat pump, or do...
By GrahamF , 4 hours ago
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RE: Heat pump and wifi kit connection.
Wi-Fi kit covers any Samsung device that has a modem in...
By Alfapat , 11 hours ago
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RE: How to Understand Wiring Up a Heat Pump
I’m watched @pirate-rich rewire our wiring centre last ...
By Mars , 12 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@agentgeorge err… Pass! I dunno what caused that! I’ll ...
By Toodles , 12 hours ago
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RE: Sizing - Save me from my headache
If you get an R290 pump you should be able to heat the ...
By JamesPa , 13 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa can you take a pic of the primaries inside the...
By AdamK , 13 hours ago
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RE: Large heat pump options for church building
@aventus-eco Thanks Sean, will drop you a line.
By Josephiah , 13 hours ago
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RE: Moving FIT array onto a Tesla Powerwall 3 possible?
@toodles that’s good news for @adamk
By Judith , 14 hours ago
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RE: Samsung Gen 6 - Schedules not working
@technogeek That sounds very logical :-). I will give i...
By bontwoody , 17 hours ago
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RE: Who's your electricity provider and what's your tariff?
Considering Octopus states all their electricity is gre...
By AgentGeorge , 17 hours ago
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RE: Heat Pump + Tado Setup: Smarter Control for Secondary Pumps?
@pirate-rich thanks for the reply. If I were to explo...
By Lloydi , 18 hours ago
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RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy
@transparent I think the committee might get into some ...
By Toodles , 19 hours ago
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Samsung ASHP Support in Midlands area?
Hi all, Per title.... can anyone recommend a ASHP ser...
By Andehh , 20 hours ago
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May I present the maths I referred to earlier when disc...
By Transparent , 22 hours ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
How many times and dates have epc sap rules been change...
By Tim441 , 22 hours ago
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RE: Rodents! A word of warning for heat pump owners
I think similar care should be taken against vermin ing...
By Transparent , 23 hours ago