replacing Back boiler & primatic cylinder new system.

[Covertop]

Hi
Hopefully someone can give good guidance on the best system I should be looking for to replace the following.

Flat roofed 5 bed house so no attic. Only one bathroom but 3 wcs. Currently a primatic cylinder in bathroom cupboard. shower is electric heated.

Downstairs there is a baxi bermuda back boiler with a gas fire in front. Pump is upstairs in floor of room above it. One old manual style thermostat downstairs in hall way. Electric timer boiler controls on side wall of fireplace.
4 rads currently downstairs
6 rads upstairs inc bathroom.
Boiler approx 15 years.

System never been powerflushed obviously due to primatic although rads individually removed and cleaned out most years (no use for pipework i agree)

Looking to fit most efficient economic to run system without having to hopefully get all pipework ripped out.

All assistance gratefully received many thanks.

 

[45yearsagasman]

You sure it's a primatic cylinder?

 

[Covertop]

You sure it's a primatic cylinder?

yup

 

[gas_man_gaz]

is the airing cupboard on a outside facing wall? and where is the gas meter located?

 

[Covertop]

is the airing cupboard on a outside facing wall? and where is the gas meter located?

gas smart meter is inside the front porch

the airing cupboard is on an outside facing wall

however next to it is a bath.
Id like to reconfigure the bathroom at some point to perhaps put in a free standing shower instead or move things around so have some space where that tank in,

Is a combi out of the question
something like a Remeha or viessman or more run of the mill like a bosch ?
or would that require a complete conversion of the system / pipework

 

[45yearsagasman]

If you have no attic, where is the cw storage tank situated?

 

[Covertop]

If you have no attic, where is the cw storage tank situated?

thats above the primatic also in that cupboard

 

[Nige F]

What colour is the bathroom suite ? - well I thought it as pertinent as the other questions Unfortunately I`m not Gas Safe so I can`t talk about gas boilers , but a combi sounds like the way to go . You could pretty much work out possible sites for it yourself . Remember you need to get a condensate pipe away from it - indoors to a soil stack ideally (- as well as the gas in and heating pipes out )

 

[45yearsagasman]

well I thought it as pertinent as the other questions Unfortunately I`m not Gas Safe

And if you were you would realise that asking questions gives a better understanding of the site layout and the requirements, instead of saying, "a combi sounds like the way to go"

 

[Nige F]

Winds up the gas men though

 

[45yearsagasman]

Doesn't wind me up.

 

[gas_man_gaz]

it sounds like you could fit the combi in the airing cupboard where the cylinder is without making too much mess.
you would have the hot/cold feeds and pipe-work for your central heating as they all would be used for your cylinder. you would need to get the gas supply in there but that could be run on the outside of the house, and ya condensate shouldn't be a problem as its in the bathroom.

i am presuming alot as without seeing ya current set up or house layout it is hard to advise

 

[mysteryman]

A good powerful combi could be just right for you. The first thing you need to do is to get someone to check the dynamic flowrate of your cold water main, because it has to supply all taps, hot and cold, at once. Look at a good simple shower mixer suitable for a combi.
Ignore the idiots on here who just want to 'wind up the gas men'.

 

[Covertop]

thanks for the replys to date


Im thinking the kitchen (below the bathroom) could be a better option for the boiler. Its also external wall facing and the gas pipework currently enters the house from the porch, goes upstairs alongside the stairs (built/boxed in to them) across under the floorboards to a bedroom above the lounge where the pump is (above the boiler) then down alongside the fireplace to the boiler.
gas pipework could be routed down to the kitchen instead freeing up the bath room airing cupboard space to move the bath/electric shower over at present the other way, move the sink in to the middle and put a standalone shower cubicle (happy to have an electric again (currently 11.5kw) there if easier) where the airing cupboard is.

gas work around property isnt an option, as meter is inside a brick front porch. Property is semi detached with a side garage that is almost attached (essentially a terrace garage) to the other neighbours garage

 

[Covertop]

If going a combi route, flowrate dependent, what type of output boiler would be best and what boilers should be avoided

Im guessing this is going to require changing from a gravity to a sealed system too ?
price is very subjecting but roughly would there be any additional costs from changing from this old boiler type set up to a new combi one, above replacing a like for like ?