Replacing System Boiler Gas

[foxyferret]

Our ancient Potterton 60e has become irreparable so we need a new gas boiler. Not combi or condenser as last year our hot water tank in the airing cupboard leaked through the ceiling so we spent about £1800 on a new tank. I think it may be called a system boiler.We have a budget of £2500 max and after trawling the internet are bamboozled by different makes, costs, efficiency etc. can anyone recommend a good make with a 10 year guarantee (some cheaper ones only have 5 or 7) for a 4 bed detached property with 2 showers and 1 bath, 12 radiators. We are very cold and because the immersion heating won't come on, we have no hot water. Any help very appreciated.

[The Builder]

A traditional boiler features an immersion cylinder and a gravity top-up cistern in the roofspace.

A system boiler is different in that it's unvented. i.e. it's supplied directly from the mains.

Are you sure you have an unvented immersion cylinder?

[foxyferret]

Yes, installer of cylinder said it was invented.

[foxyferret]

Sorry unvented

[foxyferret]

We have 2 expansion tanks above the cylinder

 

[foxyferret]

There is no tank in the loft

[The Builder]

Ok. It's tempting to overthink this Foxy. Boilers have improved greatly even over the last 10 years. There really isn't  a lot in it nowadays.

The big names: Ideal; Worcester Bosch; Vaillant; Grant, plus some of the lesser know names: Vogue; Viessman; Alpha. They can all offer 10 year warranties.

I would be much much more inclined to concentrate on the installer. Recommendations certainly. Look for someone you're comfortable with . Someone who really cares about their work (yes, they do exist.)

The best boilers in the world can still be messed up by incompetent installation and indifferent follow-up.

Good luck 😀

[Hymie]

The last property I lived in had a Potterton 100e combi-boiler (I think rated 30kW) and that was a 3 bedroom end of terrace house.  I would say that your 60e model, well under rated for a four bed detached house.

 

Boilers can be purchased for less than £1,000 – so the cost of install will eat up most of your budget.  Back in around the year 2000 my then boss had a combi-boiler replacement done, he shopped around and managed on a total budget of £1,500.  What with inflation I think you will do well to get it done for £2,500.

[foxyferret]

Thank you both for your answers. I have managed to source a Vaillant boiler with an installer with good reviews on Trustpilot for £2,300.00. Fingers crossed all will be well, everything seems to be a bit of a lottery these days. Much appreciate you responding.