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"Did anyone take on board posts earlier in the year in regards boiler Maximum output? This was not flow temperatures, it was the intensity that the boiler consumes gas and set correctly, van save up to 22% on consumption for the same effect. My 36kw gas boiler is set to 12kwh heat output on Central Heating meaning it burns slower and steady. Flow return temp is 50 degrees meaning it is condensing and at maximum efficiency. I can control each individual radiator using an app and heat only the rooms I am using via it. Running a bath, turning down the rate of water also slows the internal fan and slows down combustion to allow more heat transfer before being list in the flue. My annual gas is 50% lower by doing this. You'll need an engineer to check the maximum output settings and if you are having a new boiler, insist heat loading is checked as 90% of boilers fitted by lazy installers don't leave them throttled down." If you can save 50% on gas then either Your not heating the house as much Your boiler is too big Your boiler is fucked Basic physics | |||
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" If you can save 50% on gas then either Your not heating the house as much Your boiler is too big Your boiler is fucked Basic physics " Not true. A condensing boiler needs to run within a temperature band which allows water to condense in the flue to be most efficient. It is better to run a slightly larger boiler in the efficient zone than it is to flog an under sized one flat out. Search "opentherm" for more explanation, although most boilers aren't easily compatible with this as the manufaturers want to sell over priced proprietary controls. | |||
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" If you can save 50% on gas then either Your not heating the house as much Your boiler is too big Your boiler is fucked Basic physics Not true. A condensing boiler needs to run within a temperature band which allows water to condense in the flue to be most efficient. It is better to run a slightly larger boiler in the efficient zone than it is to flog an under sized one flat out. Search "opentherm" for more explanation, although most boilers aren't easily compatible with this as the manufaturers want to sell over priced proprietary controls." I allowed for that, 50% ??? | |||
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" If you can save 50% on gas then either Your not heating the house as much Your boiler is too big Your boiler is fucked Basic physics Not true. A condensing boiler needs to run within a temperature band which allows water to condense in the flue to be most efficient. It is better to run a slightly larger boiler in the efficient zone than it is to flog an under sized one flat out. Search "opentherm" for more explanation, although most boilers aren't easily compatible with this as the manufaturers want to sell over priced proprietary controls." The biggest saving beyond turning the boilers max output, flow temp is by using TUYA Zigbee remote valves connected to TCP Smart App. Working at home, I press Office Boost - this wirelessly shuts every radiator off except the office and fires the boiler for 10 minutes, more than enough to heat the single room. Then, there are timers: Morning Bedroom, Lounge and Bathroom Daytime - Weekdays Office Daytime - Weekends Lounge, landing and kitchen(low) After 6pm Main rooms, non main set to Eco (17) All automatic and "Alexa - run boiler 40 mins" radiators already configured for when heat arrives. So, boiler running absolute max efficiency and save 50% of Gas by tight control where and how much the heat goes. Today, sun showed its face for two hours, that gave me 9kwh which went into Air Conditioners and Lounge fan heater, this lifted house from 15'C to 24'C and is naturally cooling right now so no need for heating from gas tonight. ---- Not looked into Opentherm but believe it calculates the heat loading and adjusts output to suite to stop boiler over working? | |||
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