At their regularly scheduled meeting today, the Board addressed some of the issues raised in the recent Inspector Continuing Education class (Session 23)
1. Accessibility of gas shut off valves relating to fireplace inserts and stoves:
The Board considers a manual shutoff valve installed behind a free standing gas stove to be accessible and is therefore allowed. It still must be installed within six feet of the appliance and may utilize an Product Accepted gas flexible connector no longer than three feet long.
The Board also considers a manual shutoff valve installed in a gas fireplace insert to be accessible as long as it is located in the section of the fireplace insert which is not subject to thermal damage during the regular operation of the unit. The shutoff would have to be located in a compartment outside the actual burning area of the fireplace and would also have to include an access door. If the fireplace does not have an access door, the installing contractor would have to install a gas shutoff valve which would be considered accessible by the inspector within six feet of the appliance.
I would like to suggest that if you get a permit filed for a gas fireplace insert, you may want to contact the licensee and let him/her know what the requirement is if the unit does not have an access door. This may help to alleviate issues at the time of inspection.
2. Multiple shower heads utilizing one shower drain:
When sizing the drain, a shower containing a single 2.5gpm shower head will carry a fixture unit value of 2. For every additional shower head installed that may be in use at the same time, carry one fixture unit for each additional 2.5gpm head.
Example: Shower valve with a 2.5gpm head = 2 FUV
4 additional 2.5gpm body sprays = 4 FUV
Total = 6 FUV - 2” drain allowed
If you have any questions, please do not hesitate to contact me.
Wayne E. Thomas
Board of State Examiners of Plumbers and Gas Fitters
1000 Washington Street - Suite 710
Boston, Ma. 02118-6100