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Three bathroom: megaflow, heatstore, or big combi?
alexanderalexander
Posts: 345 Forumite
Hello all,
I've had my house massively extended, increasing it from one bathroom to three! So far I have kept my existing small combi boiler, but as expected it's not providing anywhere near enough hot water for three bathrooms. I've spoken to a plumber who has suggested three options and suggests they'd all be much of a muchness in terms of their efficacy:
Very grateful for any help.
I've had my house massively extended, increasing it from one bathroom to three! So far I have kept my existing small combi boiler, but as expected it's not providing anywhere near enough hot water for three bathrooms. I've spoken to a plumber who has suggested three options and suggests they'd all be much of a muchness in terms of their efficacy:
- Add a megaflow to my existing combi boiler. The disadvantage is that I have two separate bits of kit (boiler and Megaflow) to maintain or replace when they're worn out, but it would "only" cost about £1200 compared to around double that for the other two options.
- Swap my boiler for one with an integrated hot water tank (I think it's known as "heatstore"), such as an Ideal Istor.
- Swap my boiler for a high-capacity combi boiler (such as a Worcester Greenstar Highflow 550CDi) -- my plumber says I have very high mains water pressure so this would work.
Very grateful for any help.
0
Comments
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Id go the mega flow route, assuming as you say the cold mains is good, zone it off you current heating system and just let your current combi run either a kitchen hot tap or one bathroom.
Istors are possible the worse thing ive ever worked on.
Highflows are good but only provide hot water at 20l per minute for a limited amount of time and then they fall back to a normal combis flow rate and they are very expensive.0 -
Id go the mega flow route, assuming as you say the cold mains is good, zone it off you current heating system and just let your current combi run either a kitchen hot tap or one bathroom.
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I agree with this. The other main advantage over the other 2 options is that you will be able to have hot water from the megaflo even if the boiler breaks down.0 -
An unvented cylinder for sure. There are other brands just as or more reliable for less than a Megaflow.0
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Thank you very much to everyone for this help. It sounds like everyone's agreed that a Megaflo (or alternative brand of unvented cylinder) would be best.0
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Joule cylinders are highly rated and much cheaper than a Megaflo branded unit. I have the latter and wouldn't spend the extra on it.0
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