Garage conversion - combi boiler suggestions

[ianmcd]

You've not explained who might be staying in the annex...if they are elderly or infirm I would certainly not entertain a combi.

why not ?

 

[Gasguru]

Really?

 

[ianmcd]

Really?

yes Really please enlighten me

 

[akist]

I am really hanging by a thread here For a system boiler I'd pay £1000 for the boiler and £500 for the unvented cylinder. For a combi boiler I'd just pay £700 for the boiler, £800 difference. I presume that for both cases I'd need a circulating pump for the CH water ?

 

[flameport]

I presume that for both cases I'd need a circulating pump for the CH water ?

Not for the combi.
A combi boiler has everything in the one device, including an expansion vessel and pump. You don't need anything else - that's the entire point of it.

 

[fixitflav]

I am thinking of installing a combi boiler to do away with water cylinder and tanks.

Do you mean remove the existing boiler etc and replace with a combi for the whole property, or a dedicated combi for the annex?

 

[bernardgreen]

I'd need a circulating pump for the CH water

That would be included in the system boiler. A Heat only boiler would require an external CH pump.
,

 

[akist]

Therefore for both system and combi boilers I do not need expansion tank or circulating pump.

 

[durhamplumber]

You've not explained who might be staying in the annex...if they are elderly or infirm I would certainly not entertain a combi.

Why is that then?...Cannot understand why you think that.

 

[ianmcd]

A combi is perfect for your requirements, get some quotes from professionals and they will agree, sometimes keyboard warriors are not your best friend a few have proven such on this post

 

[Gasguru]

When your combi fails more than often you loose hot water...if you can afford to live with that for several days (when you can't get the parts/bank holidays/weekends) then fine but if you've got elderly/infirm/disabled in your annex that are likely to need daily medical care including washing then a cylinder with immersion backup would be a better option. Alternatively have an electric shower plumbed in too for backup.
Trust me I've seen it many times...the worst a 6 bed house with a combi and a paraplegic...he had to be taken back into respite care each time their junk Ecotec packed up. Of course it was the wrong setup but who wants to listen.
Mine own place...a boiler for the cylinder and another boiler for the heating.