Central Heating overhaul..

[A100man]

The 12kW 1970s Baxi Bermuda in my three bed semi can just about take the chill off in winter. Most of the rads though are only getting luke warm and rudimentary flushes have little effect. So I call in my boiler mate for an appraisal. His verdict new 30kW Vaillent (combi) boiler (fair enough) and new rads all round (seven) and new Hive controller (a must have he says).. Total 4k ish

The price I think is fair to essentially completely renew the system however as I may have stated in the past I am pathologically mean and in any case I don't have 4K.

My starting point was going to be. Cheapest 25-30 KW boiler I can find with an SS heat exchanger. Powerflush and magna-clean fitted.

Thoughts?

Cheers
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Now: A100, GT250A, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600

[DRZ4Hunned]

My Glowworm 30kw recently went kaput after only 4 years in my 2.5 bed ex council semi.

Replaced it with a budget Ideal Logic 25kW from Travis Perkins for £550 and got a local plumber to fit it with a new flue for £300 cash.

I have no idea why plumbers charge so much as he was in and out within the morning, so £300 for half a days work!

I wouldn't say 4k is particularly good or "mates rates"...
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DRZ400-SM
FZS600

[Freddyfruitba...]

It's absolutely standard practice to recommend renewing the whole system in these circumstances because it's the only way the engineer can guarantee its going to work properly afterwards, whether that's due to clogged-up radiators, knackered radiator valves, inefficiently fitted pipework, etc etc.

I can relate my own experience about 15 years ago of converting from a low pressure to a mains pressure central heating system like your proposed one... we kept the old radiators and everything was fine for a few days... but then, one of the old bedroom radiators developed a leak, right in the middle of a panel at the back, where a rust pinhole had formed due to the higher pressure in the new system. By the time we found out, gallons and gallons of water had leaked and soaked the bedroom carpet, dripped through the ceiling and trashed the sofa in the room below. Not pretty.

My neighbours replaced their boiler recently, kept the old radiators against advice, and all was absolutely fine. Yer pays yer money and yer takes yer choice.
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KC100->CB100N->CB250RS--------->DL650AL2->R1200RS->R1250RS

[P.]

I would ask that all pipes are checked, had a more powerful one popped in and a pipe shat itself above the clothes cupboard... tasty.

Seems a lot though, non-mates rate 6 rads, new boiler and 1.5 days of 2 people was £2600.

No hive or any of that BS, I have a timer that does 2 hours of hot water a day and when its cold does heating from 4am till 8am and 5pm to 8pm. I dont care about ambient temps and having it controlled from my phone... its all pre-set.

[A100man]

[A100man]

[Riejufixing]

DIY everything except the boiler installation.

You used to be able to get a "Baxi Bermuda BBU HE" to replace your old boiler (a friend had one to save re-doing the pipework and ripping stuff out), but I think they're now discontinued.

If your old rads are sound, keep them, you don't have to change the whole system. If you know they're clogged, unbolt them, take them outside and just flush them with a hosepipe, IF you need to.

Edit: your old system is reliable? It'll "save" you about £250/year at a guess to switch to a new condensing boiler (and I'd keey the cylinder IIWY).

[A100man]

[Riejufixing]

[t121anf]

[Freddyfruitba...]

[Riejufixing]