Inspection Training

How to Check the Water Heater Gas Supply

While the inspector is at the water heater they will need to use a gas detector to check for any gas leaks. There is a slow and methodical way that the inspector should use the gas detector in order to make sure that no gas leaks are missed. The gas detector of choice for Axium inspectors is the Bacharach Leakator. Please review the procedure below.

 

NACHI SOP

International Standards of Practice for Performing a General Home Inspection

 

3.6. Plumbing

 

I. The inspector shall inspect:

C. The water heating equipment, including the energy source, venting connections, temperature/pressure-relief (TPR) valves, Watts 210 valves, and seismic bracing.

 

II. The inspector shall describe:

N/A

 

III. The inspector shall report as in need of correction:

N/A

 

IV. The inspector is not required to:

B. Measure the capacity, temperature, age, life expectancy or adequacy of the water heater.

H. Operate any valve.

S. Test, operate, open or close: safety controls, manual stop valves, temperature/pressure relief valves, control valves, or check valves.

V. Inspect or test for gas or fuel leaks, or indications thereof.

 

Axium SOP Differences

Axium Requires: The inspector will check the water heater gas supply and also check for the presence of the gas shut-off valve at the water heater.

 

Tools Needed

The inspector will use the gas detector to check for any gas leaks at the water heater.

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Procedure

  • While inspecting the water heater you will need to get out your gas detector and turn it on. Do this at the beginning when you first start to inspect the water heater because it will take a minute for it to calibrate.
  • Once the gas detector is calibrated you will slowly start to run it along the gas piping of the water heater checking for any gas leaks. If there is a leak it will begin to beep very rapidly.
  • If there are no leaks present you will take one picture with the gas detector in your hand showing that you tested the gas piping. You also want to make sure that the shut-off valve is in this picture.

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Common Defects

  • There is a gas leak or damage at the gas piping of the water heater.
  • There is no shut-off valve present at the water heater.

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Common Mistakes

  • Not checking for the presence of a shut-off valve.
  • Not checking all of the piping for gas leaks.
  • Not taking a good picture with the gas detector in hand showing the shut-off valve.

 

Report / Software

IN


  • The gas supply piping included a shutoff valve in the vicinity of the heater for service personnel and emergency use. No evidence of leakage was detected at any of the exposed gas piping. The valve was not operated as part of the inspection.

NI

  • N/A

NP

  • Electric: An electric water heater does not require a gas supply.
  • Not Present: The type of water heater does not require a gas supply.

RR

  • Gas Leak: The gas supply piping included a shutoff valve in the vicinity of the heater for service personnel and emergency use. The valve was not operated as part of the inspection. Gas leakage was detected at exposed gas piping connection. A qualified contractor should evaluate and repair or replace as necessary.
  • No Shut-Off Valve: There was no gas shutoff valve installed at the water heater. Safe building practices require a gas shutoff valve be installed at every gas- burning appliance. The inspector recommends that an approved gas shutoff valve be installed by a qualified contractor.


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