Combi Boilers... any good?

Author
Discussion

Phill_1981

Original Poster:

60 posts

242 months

Wednesday 24th May 2017
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I'm renovating a 3 bed mid terrace, the current normal boiler needs replacing.

Are modern Combi Boilers any good or should I just replace like for like? 1 bath/shower.

kambites

67,543 posts

221 months

Wednesday 24th May 2017
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I swapped from a hot tank setup to a combi boiler a number of years ago. I like the combi setup; it's cheaper to run and you can't run out of hot water. You also get mains pressure hot water which is a bonus if you have decent mains pressure.

Plus I could extend the bathroom into what used to be the airing cupboard so I had space for a decent bath and separate shower. I do occasionally miss having an airing cupboard though, usually when making bread. smile

Sheepshanks

32,705 posts

119 months

Wednesday 24th May 2017
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kambites said:
I do occasionally miss having an airing cupboard though, usually when making bread. smile
...and for airing clothes! Doesn't anyone do that these days?

I'm not a fan of combis but they seem to be expected these days, especially in smaller houses. Both my daughters houses have them and they cope well with family life, bathing kids etc and the CH warm-up time is a revelation compared to my old fixed output boiler.

B17NNS

18,506 posts

247 months

Wednesday 24th May 2017
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For a 3 bed with 1 bathroom it's a no brainer.

Twig62

746 posts

96 months

Wednesday 24th May 2017
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The only issue I have with my combi boiler is that with it being in the loft about 3 bowlfuls of (metered) water go down the plug hole before any warm water comes out the tap !

Edited by Twig62 on Wednesday 24th May 15:01

Sheepshanks

32,705 posts

119 months

Wednesday 24th May 2017
quotequote all
Twig62 said:
The only issue I have with my combi boiler is that with it being in the loft about 3 bowlfuls of (metered) water go down the plug hole before any warm water comes out the tap !
Save it for flushing the toilet. smile Mind you, it's probably worse getting stored hot water to our downstairs cloakroom as it's quite a tortuous route.

The thing that seems counter-intuitive to me is for the boiler to have to fire, with all that that entails, every time a hot tap is turned on. In a family house it must be on and off dozens of times per day.

fastbikes76

2,450 posts

122 months

Wednesday 24th May 2017
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Gas combi...brilliant
Oil combi..run a mile

We specialise in Oil fired heating and you couldn't give me one for free ! However any property I've had with a gas combi has been faultless and trouble free.

TooMany2cvs

29,008 posts

126 months

Wednesday 24th May 2017
quotequote all
Sheepshanks said:
...and for airing clothes! Doesn't anyone do that these days?
So put a small radiator in the airing cupboard.

Sheepshanks

32,705 posts

119 months

Wednesday 24th May 2017
quotequote all
TooMany2cvs said:
Sheepshanks said:
...and for airing clothes! Doesn't anyone do that these days?
So put a small radiator in the airing cupboard.
You could put a big one in there and use it to store hot water!

More seriously - having a rad in there is an accepted thing, my in-laws have one. Great in the winter when the heating is running most of the time, but pretty useless the rest of the time.

I suppose you could go really mad and do what they do in bigger houses and put it on the towel rail loop, but that's bonkers for most people.

scottdm3

151 posts

131 months

Wednesday 24th May 2017
quotequote all
Twig62 said:
The only issue I have with my combi boiler is that with it being in the loft about 3 bowlfuls of (metered) water go down the plug hole before any warm water comes out the tap !

Edited by Twig62 on Wednesday 24th May 15:01
Just crack the tap open until you get warm water then open fully to fill the bowl

scottdm3

151 posts

131 months

Wednesday 24th May 2017
quotequote all
Sheepshanks said:
You could put a big one in there and use it to store hot water!

More seriously - having a rad in there is an accepted thing, my in-laws have one. Great in the winter when the heating is running most of the time, but pretty useless the rest of the time.

I suppose you could go really mad and do what they do in bigger houses and put it on the towel rail loop, but that's bonkers for most people.
you can use the immersion heater electrical supply to power a heating element in a towel radiator

PartOfTheProblem

1,927 posts

171 months

Wednesday 24th May 2017
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Our Vaillant combi has a small heated tank inside it so you get a few litres of hot water almost immediately until the boiler starts chucking out constant hot water at the tap. Its a great feature. smile

Alucidnation

16,810 posts

170 months

Wednesday 24th May 2017
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Combi makes sense, especially if you are selling it on, but i would never have one in my own house.

chil84

46 posts

194 months

Wednesday 24th May 2017
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Problem solved if you have a long run on your hot water. Fitted a few now good bit of kit

https://www.unventedcomponentseurope.com/teddingto...

littlebasher

3,774 posts

171 months

Wednesday 24th May 2017
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chil84 said:
Problem solved if you have a long run on your hot water. Fitted a few now good bit of kit

https://www.unventedcomponentseurope.com/teddingto...
How does that work then?....by slowing the flow till the water temperature is sufficiently high?

Speed 3

4,529 posts

119 months

Wednesday 24th May 2017
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My Mum had one fitted in her 3-bed bungalow and I was amazed at the pressure in the mains-fed shower after she replaced a pump fed from tank. Never any drop off in temp either.

Chrisgr31

13,459 posts

255 months

Wednesday 24th May 2017
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We have a combi boiler in our house and hate it. There is no airing cupboard, if you are in the shower and someone flushes a toilet, outs the washing machine on etc you are leaping around as the water temperature changes.

The combi that was fitted when we bought the house was remarkably unreliable and every part of the boiler except the outer case was replaced at least once under our British Gas service contract. In fact they came out so often they agreed to replace it at "cost". Not sure it was true cost but it was certainly less than local independents would fit it at.

The replacement has been a lot more reliable but I am not sure how long it will last.

chil84

46 posts

194 months

Wednesday 24th May 2017
quotequote all
littlebasher said:
chil84 said:
Problem solved if you have a long run on your hot water. Fitted a few now good bit of kit

https://www.unventedcomponentseurope.com/teddingto...
How does that work then?....by slowing the flow till the water temperature is sufficiently high?
When you turn the hot tap on the water will only trickle out, the boiler will fire up and when the wax capsule in the combo save has got to the correct temp it lets you have full bore water.

Really easy to fit and cheap certainly worth a try.

sidekickdmr

5,074 posts

206 months

Thursday 25th May 2017
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fastbikes76 said:
Gas combi...brilliant
Oil combi..run a mile

We specialise in Oil fired heating and you couldn't give me one for free ! However any property I've had with a gas combi has been faultless and trouble free.
Gulp redface

otolith

55,995 posts

204 months

Thursday 25th May 2017
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They're great if you want a decent shower.