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Discuss Combi or unvented, which is cheaper to run in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net

Jones82

Gas Engineer
Interesting thought

I currently have a 28kw combi, 1 bathroom, 2 up 2 down semi.

I'm g3 and gas safe. I fit unvented and replacement boilers all the time.

I'm thinking about replacing my combi with a small 120 litre unvented cylinder in the loft.

An unvented cylinder usually draws about 3-5kw per hour, and heats up in about 30-45mins

I reckon the new cylinder will lower my gas bills?

Thoughts..
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer

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