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Discuss Back boiler to combi in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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Hi, new to the site so please bare with me.

I have a property which is rented out, up until recently to a single guy. In the last month or so his partner and children have moved in making it a home for 4.

The current heating system is powered by a baxi boiler with water tank in the loft.

Tenants are now complaining that it’s a chore having to turn the boiler on and waiting to get hot water and that the tank doesn’t hold enough water to fill 4 baths.

I believe this is the start of a number of conversations they’ll be instigating to try and get me to replace the heating system with a combi.

I’m reluctant to do so because the current system is still very efficient, services every year and of course the associated costs.

My question is how much does replacing a back boiler with a combi tend to cost (north east)? Also, the pipe work is 8mm microbore, does that make any difference to the installation or would it just be a case of fitting appropriate valves to adapt to that size at the boiler?

Thanks

Mark
 
Depends on the system but me personally I would want to price for repiping as it’s 8mm

As for costs anywhere from 4K -8k you might get some cheaper but you can tell where they have cut the price
 
How long is a piece of string....

Depends where in the country you are/what brand of boiler you want/ what size boiler/ whether the gas pipe work will need upsizing/ type of flue etc etc. No two jobs are the same so all depends. There’s loads of variables.

Yes you can get valves for the microbore, however be aware that microbore does not always hold up when the system is pressurised.

Best bet is to get several quotes from local firms mate.

Good luck
 
Do they have controls do that hot water can be set to a timer
 
I’d offer to put in a more user friendly programmer/timer in the first instance.
 
I would imagine all the hot water is used by bath 1 or 2. They then have to wait for it to reheat for the remaining baths
 
Any stored water solution will struggle with 4 newly drawn off baths. What’s wrong with one after the other and topping up with hot. As long as nobody pees in it you’re fine
 
I think your tenants are asking a bit much. It's not like a hotel with unlimited hot water. It's perfectly normal to have to wait a bit for the stored hot water to reheat if it's all been used. Switching the hot water on and waiting for it to heat up is silly if there are regular bath times. It would be better to have the timer get a tank of hot water ready and then stay on long enough to reheat the water for the next bath. I have mine set like that so that it doesn't keep hot water all night when it's not needed. Comes on early in the morning ready for morning ablutions. Mind you we are creatures of routine and habit.
 
Hi, new to the site so please bare with me.

I have a property which is rented out, up until recently to a single guy. In the last month or so his partner and children have moved in making it a home for 4.

The current heating system is powered by a baxi boiler with water tank in the loft.

Tenants are now complaining that it’s a chore having to turn the boiler on and waiting to get hot water and that the tank doesn’t hold enough water to fill 4 baths.

I believe this is the start of a number of conversations they’ll be instigating to try and get me to replace the heating system with a combi.

I’m reluctant to do so because the current system is still very efficient, services every year and of course the associated costs.

My question is how much does replacing a back boiler with a combi tend to cost (north east)? Also, the pipe work is 8mm microbore, does that make any difference to the installation or would it just be a case of fitting appropriate valves to adapt to that size at the boiler?

Thanks

Mark
Stick a water meter in there, problem solved. centralheatking
 
First world problems....
Surely you just go in one after the other starting with the cleanest, for some reason I always had to go last........
 
First world problems..
Surely you just go in one after the other starting with the cleanest, for some reason I always had to go last....
you had a bath ! we had it tough
we had to share sucks on pear drops and lick our own chocklate to make sure the others did not steal it
centralheatking
 
Depends on the system but me personally I would want to price for repiping as it’s 8mm

As for costs anywhere from 4K -8k you might get some cheaper but you can tell where they have cut the price

Last bbu to combi in a/c with a 28mm gas run I did was £3600 I did that to a good standard witha reliable boiler filter new clock etc so what do you mean you can tell where they have cut the price?
 
Last bbu to combi in a/c with a 28mm gas run I did was £3600 I did that to a good standard witha reliable boiler filter new clock etc so what do you mean you can tell where they have cut the price?

Including a repipe (eg getting rid of the 8mm circs and new rads and valves) ?
 
Ah fair enough I thought you meant just a bbu to combi swap. I shall go back to my hole and hide.

Thought you meant a conversion be around the same then 3.2-3.6
 

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