Discuss 30Kw v 35Kw running costs in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Assuming he knows how to size a boiler correctly.You should leave sizing the boiler to your installer
Will a 35Kw boiler use a lot more than a 30Kw? Only two bathrooms in 4 bed house but need a good hw flow to fill a bath each day.
Spot on !!Well I agree you should leave the sizing to your installer, but to A the Q...
If it's a combi then in theory, ceteris paribus, they will use exactly the same amount of gas to warm a given volume of water - your bath! - the same amount but the 35KW one will do it faster. In practice they will use roughly the same amount.
For heating, it will depend how well they modulate down to supply the steady-state few KW that you house will need. This will be far below the peak output of either the 35KW or the 30KW so, again, I'd say it will be about the same.
Anyone disagree strongly?
Oh, that's what it was !!!! I only just about managed English at my school, they wouldn't let us do foreign languages. LOLWell I agree you should leave the sizing to your installer, but to A the Q...
If it's a combi then in theory, ceteris paribus, they will use exactly the same amount of gas to warm a given volume of water - your bath! - the same amount but the 35KW one will do it faster. In practice they will use roughly the same amount.
For heating, it will depend how well they modulate down to supply the steady-state few KW that you house will need. This will be far below the peak output of either the 35KW or the 30KW so, again, I'd say it will be about the same.
Anyone disagree strongly?
& even Scottish is reduced to third place. LOLEnglish is fast becoming the second language in our schools
Are you after a combi ??? because the heat load should be calculated & boiler selection based on that if not.
You should leave sizing the boiler to your installer and listen to his recommendations
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