insulated to the hilt draught proofed then they stick air vents on to your windows to let draught and fresh air in
You still will need to heat water for showers etc...
- Thread starter rtcosic
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You still will need to heat water for showers etc...
There wee two options we looked at for daughters combi heated bungalow.
1. Fit stainless unvented tank with pv powered immersion, connect temperature controlled out put into combi cold input.
This should work, the combi heat exchanger is stainless, the burner just wouldn't light as long as the water temp was high enough.
2. Fit stainless unvented tank with pv powered immersion. Forget about the combi outlet, just have an additional zone fed into the heating coil in the stainless tank to top up when pv not working.
This would need the boiler setting quite high, but also the immersion heater could be used on mains electric if required.
Haven't tried it yet, but option 2 seemed less risky. As for legionaires - anyone with pv hot water will tell you how hot the tank will get...
1. Fit stainless unvented tank with pv powered immersion, connect temperature controlled out put into combi cold input.
This should work, the combi heat exchanger is stainless, the burner just wouldn't light as long as the water temp was high enough.
2. Fit stainless unvented tank with pv powered immersion. Forget about the combi outlet, just have an additional zone fed into the heating coil in the stainless tank to top up when pv not working.
This would need the boiler setting quite high, but also the immersion heater could be used on mains electric if required.
Haven't tried it yet, but option 2 seemed less risky. As for legionaires - anyone with pv hot water will tell you how hot the tank will get...
Kayos
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Combi isn't designed to accept hot water, would just refuse to fire.
Legionella is not just about temperature, storage and distribution are bigger factors
That's the point - you don't want it to fire...
Thanks for the vague references to legionella, I don't see it an issue.
DAPPH
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I used a simple at the point of use 7 kw electric shower in my last house with a variable spray head that felt like it would strip the skin off your back if it was set to needle jet and the highest temperature , instead of wasting money & time on setting up a modified water system . Set it up on it's own circuit breaker & 30 amp cabling with a ceiling mounted double pole isolating switch by the bathroom door and a labeled up double pole isolator switch in the cupboard where the consumer unit was situated .
Wedg1e
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Yep, my Halstead Ace High/Wickes Combi 102 (25% more power than the calculations said the house needed but I don't like being cold) could parboil lobsters with more than enough flow rate as long as you don't need to be pinned against the far wall.
I'm in a bungalow, the combi's in the loft and there's a pressure reducer on the incoming cold supply that was fitted to try and stop my previous Baxi from popping seals. The Halstead had been in years before I remembered to turn the pressure back up!
In comparison, one of my ex's places had a conventional hot tank to which she insisted I fitted a 'power shower' pump and thermostatic mixer. Wasn't much of a problem most of the time but when the relatives were visiting you were lucky if the first two people in got a hot shower before the tank was done.
Not much help with the OP's question I know, but still
Gareth J
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insulated to the hilt draught proofed then they stick air vents on to your windows to let draught and fresh air in
Needs MVHR then. But that's another system to buy and maintain
Nick DV
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Showers - another stomping ground for legionella! sorry, just throwing it out there...............
rtcosic
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Current house has MVHR fitted in 1989.
Wouldn't live without one. Incoming air filtered so no hay fever problems. No condensation on bedroom windows in the morning. Bathroom condensation cleared before I've finished drying myself. Fresh air everywhere all the time and no draughts. Bliss!
If we proceed fitting a modern MVHR would be one of the first jobs - even before sorting out the garage.
DAPPH
as dyslexik as I'm daft
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Once our kiddie got too big for the special plastic baby bucket bathing on the draining board ( A gift from America) We got a big kiddies plastic bath sat in between two plastic garden chairs with arms , bungeed together for our kiddies bath as the bathroom was a tiny fully tanked 6x 9 wet room & toilet area with small sink.
As soon as she was able to run about she moved to having showers with either of us then at seven or so showered on her own with mum keeping an eye on things . ..often sitting on my disabled persons showering chair with the arms on it .
DAPPH
as dyslexik as I'm daft
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Showers - another stomping ground for legionella! sorry, just throwing it out there...............
Use a range of different cleaners to clean the area and power vent the room till it dries .. I've never had a problem in the 55 years since I had my first shower .
I did have a problem with a bath though on hard game winter sports day playing mixed team hockey . I knocked an open topped bottle of Sloanes liniment into the 3/4 filled bath whilst I was submerged to my neck . Watched with mild amusement as the golden heat came to the surface like a bubble lamp and rapidly spread out over the water warming my neck and shoulders .
I was vaguely aware of the next few seconds when I got a golden coating from my neck to soles of my feet as I got out the bath & felt the heat .
I got caught trying to cool my anus and equipment under the cold tap at a sink .. the burning sensations lasted for several very uncomfortable hours . Got ribbed about it for many many months afterwards especially by the " ladies" in the team.
brightspark
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anyone ever seen anyone with legionella . I have 
was working at a blokes house on the landing fixing a light when he came past me staggering around next minute he keeled over and nearly fell down the stairs 
and would have if I hadn't grabbed him quick enough by his dressing gown and scruff of the neck 
ambulance called and he went in to hospital and snuffed it a few days later 
was working at a blokes house on the landing fixing a light when he came past me staggering around next minute he keeled over and nearly fell down the stairs and would have if I hadn't grabbed him quick enough by his dressing gown and scruff of the neck ambulance called and he went in to hospital and snuffed it a few days later
Kayos
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anyone ever seen anyone with legionella . I have
Nearly killed my auntie, in a coma for 12 weeks, never fully recovered
Initial suspect was air con unit in a restaurant, turns out it was a shower in the hotel
Showers - another stomping ground for legionella! sorry, just throwing it out there...............
And how many years have we all been taking showers - without dying from legionaires disease?
Exactly.
Nick DV
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Whoa Trigger! I was only throwing it out there to ‘stir the pot’
I agree with you, however showers are a stomping ground for legionella.Whoa Trigger! I was only throwing it out there to ‘stir the pot’
Forgive me - it's just that it seems to be a reason for not doing all kinds of things these days, like the angel of death hanging over anyone who dares to use water not over 60 deg.
A bit of common sense is all it takes to avoid imho.
Kayos
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Obviously you have never worked on anything other than your own house? The temp of the water is only one factor.
Yes chances are you will be OK but if you actually listen to people who know then you can ensure you are safe.
My current role involves low temperature systems so legionella and the potential for legionaires is a very real possibility for me every day
julianf
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I purchased a load of second hand solar stuff once. It was some thermal panels with a small gledhill thermal store. The design was such that the panels heated the store, the DHW ran through a coil in the store, and through a thermostatic mixing valve that was set to just below the max input temperature on the combi boiler.
The people reckoned the system worked quite well, but were removing it to make space for PV panels. I was only buying for the panels, and sold the mini-store on.
