WebIt is therefore suggested to change to a flow temp of 65 °C at the boiler in order to maintain a minimum difference of of 5°C . If the difference is smaller, the time taken to reheat the water is longer and may not satisfy hot water requirements. WebDec 28, 2024 · In general, underfloor heating only needs a maximum flow temperature of 55°C. A temperature of 50°C flow and 40°C return is very common too. For an exact indication of the ideal heating temperature and what size boiler you need, we recommend that you contact an engineer who can assess your home. An easy way to do this is by …
Boiler help - flow and return differential or flow? DIYnot Forums
WebDec 16, 2024 · For a condensing boiler, low is better. The return temperature to the boiler (which you can't control directly) should be below about 55C, or the condensing doesn't happen. Without the condensing, it's no better than an old-fashioned boiler. If it sticks, force it. If it breaks, well it wasn't working right anyway. WebOct 8, 2024 · If I set the boiler to 65c and the cylinder thermostat to 60c, the hot water from the hot tap reaches approx 40c max. If I leave the boiler at 65c but bump the cylinder to 70c the hot water remains at 40c and the pump runs constantly. If I increase the boiler temp to 75c, then I get hot water at about 50c and the pump turns off. dhec kershaw county
Energy Saving Advice for Combi Boilers - reducing the …
WebJun 2, 2024 · It varies, you can get large and small combi boilers, different system setups etc, but for most combi boilers, the optimum temperature to set your combi boiler to on … WebMar 19, 2024 · The fact is, a condensing gas boiler with a return temperature of 50°C would only be circa 89% efficient (89p recovered for every £1 you spend), however the majority of condensing boilers have return temperatures much hotter than this, due to mismatched flow rates and high pump speeds. A condensing boiler needs the return … WebDec 21, 2024 · The maximum temperature that we recommend you set your radiator output to is 80 °C. If you have a conventional boiler system, your water cylinder will have its … cigarette\\u0027s wv