Condensing combi - worth it?

Question

I need to replace our (about 12-15 year) old gas system boiler with a combi and was toying with the idea of getting a condenser.

They are almost double the price of a normal combi, so in on a two-bedroomed terraced house with a shower, bath, dish and clothes washer, how long would they typcially take to make up for the extra investment? I've found some vague information around that says it may be 3-6 years. It might also be a plus point when selling the house as well perhaps I suppose.

Does anyone have any experience/comments?

Thannks,

Jonathan

IMM · Accepted Answer

NO. Some figures!  Duh!

IMM · Answer

In summer it will half the time.  !0  ins is the worst case example, nottypical.

Christian McArdle · Answer

Given that the rate is at delta 35. Say a typical summertime mains temperature of 12C, this gives a delta 28. 28/35= 80% of the time required. Not half. To get half the time, the mains temperature would have to be

22.5C, which is ridiculous, unless you aren't supplied by a buried water main (i.e. you have a well with above ground storage tank).

Christian.

IMM · Answer

More like 30 years.Aluminium heat exchangers are fine too.  The early British aluminiumexchangers were poor and rotted away. the new versions are silicon coatedwhich prolongs the life.  The Worcester-Bosch Greenstar is aluminium.

hudsterou · Answer

Does "ally" mean alloy or aluminium? An ally is someone on your side inthe war....

Condensing combi - worth it?

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