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Hello,
I am after some advice.
I am having my central heating system upgraded to facilitate bathroom upgrades and better hot water pressure. The current system is a gravity fed system with a conventional boiler and a open vent HW cylinder. I am having the system changed to an unvented system with System boiler and unvented cylinder.
My property has 4 bedrooms, 2 bathrooms (2 showers, 1 bathtub), downstairs toilet and has 15 radiators at present. My future plans (2-3 years) anticipate extending somewhat and possibly adding 4 - 5 more radiators and some water fed underfloor heating. I have been looking at options regarding boilers and I am stuck between a 26kw and 32kw system boiler. The difference in price between the two is negligible. The 32kw has a modulation ratio of 5:1 max, equating to a min output of 6.4kW. Would this be the better option to provide some level of future proofing for any future extensions? If the boiler can modulate down to 6.4kW, does this mean that once up to temperature, the gas consumption would drop to this level to keep it steady? I assume that the 32kW would just get to temp quicker in this instance?
thanks
I am after some advice.
I am having my central heating system upgraded to facilitate bathroom upgrades and better hot water pressure. The current system is a gravity fed system with a conventional boiler and a open vent HW cylinder. I am having the system changed to an unvented system with System boiler and unvented cylinder.
My property has 4 bedrooms, 2 bathrooms (2 showers, 1 bathtub), downstairs toilet and has 15 radiators at present. My future plans (2-3 years) anticipate extending somewhat and possibly adding 4 - 5 more radiators and some water fed underfloor heating. I have been looking at options regarding boilers and I am stuck between a 26kw and 32kw system boiler. The difference in price between the two is negligible. The 32kw has a modulation ratio of 5:1 max, equating to a min output of 6.4kW. Would this be the better option to provide some level of future proofing for any future extensions? If the boiler can modulate down to 6.4kW, does this mean that once up to temperature, the gas consumption would drop to this level to keep it steady? I assume that the 32kW would just get to temp quicker in this instance?
thanks