Checking combi boiler gas consumption is correct.

[man100]

I have a Baxi Duo-Tech 28 combi around 3yrs old.

I wish to check if it is using the correct amount of gas and not wasting it.

Could I do the following would it work.

If I turn all gas appliances off, and turn the room stat to 0, then read the meter which is in cubic meters, then run a hot water tap on full for 5 minutes, take another gas reading.

If someone on the forum could inform me what I should expect in gas consumption for the test would this be a violable idea.

 

[Dan Robinson]

Or am I barking up the wrong tree.

Totally.

All it will confirm is one aspect of safe operation

 

[man100]

I have sadly only one response so I take it my idea is a non starter.

That said how do you check the gas consumption is correct.

 

[Dean744PiN5]

Let me guess, high gas bill?

very unlikely that the boiler is burning excessive gas, have you got a room thermostat?

 

[Terrywookfit]

I have sadly only one response so I take it my idea is a non starter.

That said how do you check the gas consumption is correct.

Measure what it is using and compare it to what it should use.

 

[man100]

Let me guess, high gas bill?

very unlikely that the boiler is burning excessive gas, have you got a room thermostat?

Yes I have a room stat.

 

[man100]

I have sadly only one response so I take it my idea is a non starter.

That said how do you check the gas consumption is correct.

Measure what it is using and compare it to what it should use.

How do I do this please and how do I determine what it should be using.

 

[Terrywookfit]

M I's

 

[man100]

M I's

Sorry I do not understand this.

I wish to know how to check that the gas consumption of the boiler is correct.

 

[Dan Robinson]

Why?

You measure the consumption at the meter with the boiler running at maximum.

 

[man100]

Why?

You measure the consumption at the meter with the boiler running at maximum.

This sounds a little like my OP when I asked if it could be done this way but the first reply said I could not.

So ok I run the boiler flat out and read the meter how long do I run it and what should the consumption be if all is well please.

 

[Steelmasons]

INPUT rating will be higher than 28kw/hr (correct pipe sizing withstanding).

1m3 ÷ 0.094= KW's.

 

[spudkey]

Run it at max for 2mins should do about 0.1 m3

 

[Dan Robinson]

If you bothered to tell us why you wanted to measure it we could advise you better.

 

[man100]

If you bothered to tell us why you wanted to measure it we could advise you better.

As I said in my OP I wish to be sure it is not consuming more gas that it should.