open vent to combi system?

fishface190

hi there, just a quick question for some advice here.

I currently live in a 2 bedroom bungalow. from what I can tell we have a open vented system which is about 5 years old. I was thinking of changing to a combi boiler system but wanted some advice first. Although one of the points in changing is that during the week with being at work till late we use very little hot water (about one sink full) it's a bit of a waste having to heat up a whole tank, and also very annoying when one bath uses up your entire hot water supply and you need to wait for the tank to reheat. I was also wondering if changing to a combi would actually save us much on the fuel costs as we'd be heating a lot less water (plus boiler would prob be more efficient as old one is a cheap standard house build one??)

I am also looking at getting rid of the one controlling thermostat we have on the living room wall and replacing with individual ones on each radiator as just now although the living room is at the right temperature, the bedrooms are constantly cold and the front hall/bathroom constantly sauna like. Is this a good idea????

Space saved by getting rid of the storage tank also a plus points and geting rid of the loft tanks clears the way for that conversion that keeps getting talked about

Any advoce anyone can give would be great!

Canucklehead

Hi

You would certainly benefit from a combi, as hot water on demand would be much more efficient, plus the new condensing ones save even more on fuel costs.
You need to have a room thermostat as well as trvs. The rad in the room or area where the room stat is should not have a trv. If the boiler does not have a built in programmer then use a programmable room stat. For a combi this is a single channel programmer, the hot water function over rides the c/h automatically and back again.
As you are thinking of loft conversion I would assume an en-suite would be created as well. Get a combi that has a high flow rate. The incoming water main needs to be big enough to cope with this demand.
A good installer should be very capable of advising you of these requirements

Corgi Guy.