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You sure Timmy quick *** packet gives me a drop of 0.8 on 35mm with 14 high bends
Discuss Length of gas pipe from meter to boiler in the Gas Engineers Forum area at PlumbersForums.net
Ooooo gonna check again.....You sure Timmy quick *** packet gives me a drop of 0.8 on 35mm with 14 high bends
Loop Hole is, that if you can prove the appliance is working correctly with the correct gas pressures , you may get away with a slightly undersized gas service line.You can’t have more than 1mb drop from meter to appliance.
to 20k
You have to run the appliance at max, you can’t down rate it.
So I don’t understand what this “loop hole” is?
This won’t work with a Combi boiler, as you can range rate the heating but the hot water will be the higher output.Loop Hole is, that if you can prove the appliance is working correctly with the correct gas pressures , you may get away with a slightly undersized gas service line.
As stated previously, if you by a 24kW boiler and only require 20kW, commission the appliance to 20 kW and see what your pressure drop is at the appliance.
Is a Gas Inspector going to re calibrate the appliance to maximum and then test the gas line for correct pressures?
OP doesn't mention a combi.This won’t work with a Combi boiler, as you can range rate the heating but the hot water will be the higher output.
Loop Hole is, that if you can prove the appliance is working correctly with the correct gas pressures , you may get away with a slightly undersized gas service line.
As stated previously, if you by a 24kW boiler and only require 20kW, commission the appliance to 20 kW and see what your pressure drop is at the appliance.
Is a Gas Inspector going to re calibrate the appliance to maximum and then test the gas line for correct pressures?
Got a source?Loop Hole is, that if you can prove the appliance is working correctly with the correct gas pressures , you may get away with a slightly undersized gas service line.
In new installs, I generally oversize the gas supply pipe.I understand that people regularly let a slightly undersized gas pipe pass.
However, to complete commissioning, you need to test the gas pressure on max load, not partial. On a new install I’m installing a test point under the boiler and running other appliances. I’m not letting an undersized gas pipe slide.
However, I’d size the pipe and new boiler demand and know if it needs an upgrade when quoting work (and include the gas upgrade).
Got a source?
Isn't it the legendary MI's?You can’t have more than 1mb drop from meter to appliance.
You have to run the appliance at max, you can’t down rate it.
So I don’t understand what this “loop hole” is?
Reply to Length of gas pipe from meter to boiler in the Gas Engineers Forum area at PlumbersForums.net
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