Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Oct 15, 2026
Yes indeed that is exactly how it sounds. Water rushing, like a partially opened valve with too much flow or deltaP through it, or other restriction. ...
This tool lets you input the makeup of your wall, ceiling, roof, etc, and calculates U/R-values. It can also simulate summer comfort, thermal mass, ...
Indeed, current on the grid input = current used for charging + current output on backup port... There is another fine print: if the internal relays...
Depends on what's in the box. Either it has a charger (AC to DC) and an inverter (DC to AC), or one bidirectional DC/AC converter which is cheaper. ...
Very nice! Congratulations. Big MLC looks neat when it's finished, but it is quite uncooperative... gives a good full body workout 🤣 &...
There's an interesting gotcha about that. Suppose the supply is rated to 32A and the consumer unit breakers are connected using a 32A rated copper c...
The issue with A2A monoblocs is the airflow needs to be quite high, and pushing it through 150-200mm wide ducts requires a powerful fan that makes noi...
I've been doing it, 16-17°C water in the slabs. The effect is subtle, ie it is only noticed when it's off, "hey it's hotter than usual here!..." U...
If you have a flowmeter and two temperature probes, then you can calculate power, so you have a thermal power meter. Won't accumulate kWh like a real ...
My heat pump receives sunlight, so when the fan is not blowing, OAT sensor readings are hotter than actual air temp.
It's pretty much always a thermistor. It has to be installed with standard electrical cable, usually two wires... nothing fancy, thermistor has no p...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 2 hours ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 3 hours ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 4 hours ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 5 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 5 hours ago
-
RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 6 hours ago
-
RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 6 hours ago
-
RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 11 hours ago
-
RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 11 hours ago
-
Although regulations may well vary from country to coun...
By Majordennisbloodnok , 12 hours ago
-
RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 12 hours ago
-
RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
By GrahamF , 15 hours ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 17 hours ago
-
RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 1 day ago
SPONSORS
