Baxi Bermuda 51/5

[jase158]

Hi All,

I have Baxi Bermuda 51/5 Back boiler,

How can I know if it has 2 x flow and 1 return or just 1 flow and 1 return from boiler?

I am looking to put pump in airing cupboard to speed up heating but don't want to just put it on the hot water circuit.

Cheers in advance

 

[Simon F]

have a look, is the heating not pumped?

 

[jase158]

I cant see/ hear a pump

 

[SimonJohns]

System won't work without a pump

 

[heliotrope]

Hello jase, it is most likely that you already have pumped heating on your
system.

Have a look around near the boiler. A little cupboard, an alcove, even under
the floor is not unusual.

How long have you had any kind of problem on the heating side?

Do you have a heating/ hot water controler? Is there a room thermostat
somewhere?

That's enough questions, it's nearly my bed time.

 

[mcniven]

pump most likely under floor

 

[Simon F]

could be under downstairs floor boards from a back boiler





just beat to it !

 

[diamondgas]

jase158 .. personaly you, my friend need a lot more education regards system design! No disrespect .... Some fundermental stufff missin'

 

[jase158]

we have had problems ever since we moved in, as rented cant really be bothered to replace too much, I have replaced some radiators, which has improved things, but very slow to heat up.

we have programmer and room thermostat but no cylinder stat,

apologies for lack of info in original thread but computer playing up.

 

[Simon F]

if its a rented property, have you tried asking the landlord to arrange to fix any problems?
if you work on something you don't understand you could cause worse problems

 

[jase158]

if its a rented property, have you tried asking the landlord to arrange to fix any problems?
if you work on something you don't understand you could cause worse problems

Yes I have spoken to landlord several times on several different issues,
its a case of if i dont do it, it wont be done.

I do understand central heating, the only reason i am asking is because in the manual online there is 2 diagrams of different ways of piping up, the heating takes about 2 hours to heat up, then cools down really quickly. there is no insulation in walls, so trying to work out if heating is issue, radiator sizing is issue or the house is issue. the windows are double glazed but 90% of heat loss is from the doors whic are wooden doors, with massive gaps in between.

IMHO i dont think i will be doing any work on it as should i want to then I woul need a 3 port valve/ 2 port valve and wiring, which would be under laminate flooring, so would end up being cheaper to move, but would of liked to add to my memory bank for futuren reference, bizarelly I have never come across back boilers in my work.

So can anybody answer my question please, 2 or 3 pipes coming out of boiler?

 

[Simon F]

if its gravity hot water then there are 4 pipes, but the returns might be teed together so only 3 connections to the boiler. as said in first post take a look to be sure

 

[stevetheplumber]

whilst a back boiler isnt cutting edge technoloy it should heat the house jase if its gravity heating ill eat my hat chances are the pump isnt working or system is sludged if heating is that poor

best way to find the pump is listen it should cut in and out with the roomstat if nothing then try following every wire from the wiring center usually they are under the floor on the same side of the hearth that the pipe rise up or sometimes in the casing

 

[jase158]

This is what made me think about it as in books/ college we got taught about gravity hot water systems and central heating systems, seperately. But never learnt about how they connect together.

 

[jase158]

Thanks guys, just had another look at side of boiler as there is a void behind programmer, I could feel the pipe vibrating when the boiler fired up, I then saw wood on floor, so pulled back carpet and hey presto, there it is, the pump, turned it up to see if this helps, if not will replace, cheers again

 

[heliotrope]

So you have programmer and room stat.

You probably cannot select heating alone without hot water.

Have a good look for the pump, it's there somewhere.

 

[PlumbBobBob]

he's already found the pump read post 15

 

[tamz]

Work out the heatloss for your rooms and measure your rads and work out if they are big enough.
If there was a solid fuel fire in before the rads will probably be well undersized.

PS buy or make a draught excluder for the bottom of the doors.

 

[jase158]

Work out the heatloss for your rooms and measure your rads and work out if they are big enough.
If there was a solid fuel fire in before the rads will probably be well undersized.

PS buy or make a draught excluder for the bottom of the doors.

I have looked at these things,

Rad is well undersized for room, we have gas fire at front of boiler, so I guess this is meant to be on, but it eats up gas so looking for low cost solution, the way the room is designed there isnt really anywhere to put a big enough radiator, existing radiator could be enlarged but again it is a case of spending too much money and the BTU still wouldnt be enough to heat whole room.

Peoblem is it takes too long to heat up room and doesnt hold heat, so heating on for 2 hours, then room is warm, within an hour, room is cold.

If the room got hot quicker, thermostat would kick in, meaning we wouldnt be burning so much gas.

Gas bill is £20 per week in winter, this is having heating on for 2 hours in morning and 3 hours in evening.

Draught excluders are rubbish, they dont stop the draft, get in the way when opening/ closing door and come unstuck half way after through the winter. complete and utter waste of money IMHO

 

[quality]

Jase158 are you the paying the rent and do you have any kids

 

[jase158]

yes and yes

 

[southcoastboile]

slightly off topic but i once attended a job with a baxi powermax boiler (the rubish that baxi tech no nothing about and don't want to deal with) the heating was actuly running on gravity! heating pump was seized, must have been like it for years, was aparantly serviced every year but it was in a right state.

 

[quality]

yes and yes

Get in with your local housing association and they will put you landlord straight on requirements for rented accomadation, there are loads of rogue landlords round my way who have made to put things right