12.4 ltrs per min on their tech spec. where did you get 18 from? where did ideal quote this?
Not very scientific but using a jug on the cold bath tap we get 30 litres of water per minute I think. What does that translate to in terms of fitting a combi? Think we get 20 or so from the hot tap Would a combi be okay? Can you get a combi anywhere near that?
a combi boiler will always limit you to not having a decent power shower.
i would prefer a system boiler.
i guess you currently have a hot water tank heated by the back boiler?
Yes, we have a tank in the loft. What is the difference between a combi and a system boiler?
a combi heats the hot water on demand, theres no storage. so if you had a hot water tank, that would get removed. when you turn on the hot tap, the boiler fires up and heats the water directly.
a system boiler heats a hot water tank.
you can fit a power shower to a system boiler with a hot water cylinder but not a combi.
edit
do you have a hot water cylinder in the airing cupboard?
No, just a tank in the loft
Ideal are having a laugh if they are quoting 18 ltrs per min @ 35 Degree rise......and so are you if you think you will get that - will be 12 - 13 tops.
20ltrs per min is unvented cylinder performance, or you might get away with a storage combi.....
For the money id go unvented
im confused....
im confused....
Maybe it says vented, can't remember. But there's two tanks concealed within one fibreboard box in the loft, a hot tank, and a small cold water tank with a ball cock inside. When we run the hot water this cold tank starts emptying too
Any boiler will push 18l/min through. The only question is how hot it is when it comes out the other side ...
Decide which boiler system you want based on your lifestyle, not on the technical preferences of some hotshot mechanic. Remember you'll be the one stuck with it for 25 years, not him.
Ideal are having a laugh if they are quoting 18 ltrs per min @ 35 Degree rise......and so are you if you think you will get that - will be 12 - 13 tops.
20ltrs per min is unvented cylinder performance, or you might get away with a storage combi.....
For the money id go unvented
Seriously? A £2200 budget to replace a back boiler and supply and fit an unvented cylinder?!
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