A
a.john
My first post. I'm not a plumber etc but do have some understanding of how these things work.
Our Worcester Hi Flow is getting rather long in the tooth. It should have been replaced but still works pretty well really but will be replaced some time early next year.
Since Bosch took over they aren't available any more. Not gas anyway. It's a boiler with a built in heat store. General idea is that a bath can be run which will deplete the heat store but another can be run 4 min later. It does this by using the same type of gas valve as a combi so there are 2 rates of heat output and ch and hot water temperature can be set separately. It's also a vented system. The water still runs warmish when the heat store has been depleted because the store is so small. The heat loss from it is amazingly low.
It's an old house with solid floors so I would prefer to retain a vented system and also avoid a system boiler.
I've spent some time looking at boiler installation manuals to see if this sort of system can be replaced. There is no problem finding conventional boilers or heat stores but I can't see any signs of a way of getting separate central heating and hot water store temperatures and wonder if this is possible on all or any of the ones that are available. There doesn't seem to be any problem wiring them up for 2 thermostats. One has connections built in for that but it's a vented system boiler. What I don't want to have is a set up where an immersion heater needs to be turned on if the central heating happens to be running at too low a temperature. We have enough radiator to avoid running them at max temperature.
We have 2 bathrooms and several bedroom sinks. I don't think a combi would work out. The ancient tanks were taken out a very long time ago and when we moved in the house was fitted with 2 very old instant gas water heaters and economy 7 -heating the place when we were at work.
:smile: Hope some one can help. I rambled on about the Worcester as they haven't been around for some time now and people might not have seen or even heard of them.
John
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Our Worcester Hi Flow is getting rather long in the tooth. It should have been replaced but still works pretty well really but will be replaced some time early next year.
Since Bosch took over they aren't available any more. Not gas anyway. It's a boiler with a built in heat store. General idea is that a bath can be run which will deplete the heat store but another can be run 4 min later. It does this by using the same type of gas valve as a combi so there are 2 rates of heat output and ch and hot water temperature can be set separately. It's also a vented system. The water still runs warmish when the heat store has been depleted because the store is so small. The heat loss from it is amazingly low.
It's an old house with solid floors so I would prefer to retain a vented system and also avoid a system boiler.
I've spent some time looking at boiler installation manuals to see if this sort of system can be replaced. There is no problem finding conventional boilers or heat stores but I can't see any signs of a way of getting separate central heating and hot water store temperatures and wonder if this is possible on all or any of the ones that are available. There doesn't seem to be any problem wiring them up for 2 thermostats. One has connections built in for that but it's a vented system boiler. What I don't want to have is a set up where an immersion heater needs to be turned on if the central heating happens to be running at too low a temperature. We have enough radiator to avoid running them at max temperature.
We have 2 bathrooms and several bedroom sinks. I don't think a combi would work out. The ancient tanks were taken out a very long time ago and when we moved in the house was fitted with 2 very old instant gas water heaters and economy 7 -heating the place when we were at work.
:smile: Hope some one can help. I rambled on about the Worcester as they haven't been around for some time now and people might not have seen or even heard of them.
John
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