10. MOBILE HOME HOOKUPS. Mobile home hookup in a park may be done by a mechanical contractor or by a repairer/installer. This is as it comes from the factory. If the gas pipe has to be lengthened or changed it must be done by a Mechanical contractor as it is a change to the original factory installation. On private lots everything must be done by a mechanical contractor except for owners that do the work themselves. On either site, Air Conditioners must be installed by a Mechanical contractor. This applies on used or new equipment. As to repairs, repairer/installers may repair or replace factory installed equipment that was part of the original equipment from the factory in a mobile home park. Installing a grill outlet requires a permit and mechanical contractor. Repairer/installers are required to pull permits.
11. MOBILE HOME WOOD STOVES. All woodstoves installed in mobile homes must be listed and labeled for mobile home use and installed exactly as required in the installation instructions which will be available at time of inspection. NO exceptions will be permitted.
12. WOOD FIRED YARD BOILERS AND SOLID FUEL IN GARAGES
New SOLID FUEL HYDRONIC Water Heater Technical Bulletin
By Tennison Barry, Chief Mechanical Division
The bureau has posted a newTechnical Bulletin –Publication No. 56, Solid Fuel Hydronic Heaters (OutdoorFunaces) (see links on item 9 above). Outdoor water heaters are actually solid fuel hydronic heaters using a large fire box to heat water in an open reservoir.The hot water is circulated through an underground pipe system to a heat exchanger in the building and then returned to the reservoir. Technical Bulletin 56 was developed to address how a mechanical inspector can inspect and approve these devices – basically, walking an inspector through the process. The Michigan Mechanical Code, Section 301.4 requires all equipment be listed and labeled. As an alternative to listing and labeling, the code official may approve the equipment, or the manufacturer may have the equipment approved in accordance with the Stille-DeRossett-Hale Single State Construction Code Act, 1972 PA 230. Questions should be directed to the Mechanical Division at (517) 241-9325.
Solid Fuel-Burning Appliance Misconceptions
By Jonathon Paradine, Senior Mechanical Inspector Mechanical Division
With the price of heating fuels on the rise, many people are turning to solid fuel-burning appliances to heat their buildings. The Mechanical Division has received numerous telephone calls regarding listing, labeling, and installation requirements for the equipment. According to the 2006 Michigan Mechanical Code (MMC), Section 301.4 states, “Appliances regulated by this code shall be listed and labeled for the application in which they are installed and used…” Please refer to Chapter 2 of the 2006 MMC for the proper definitions for listing and labeling. The 2006 MMC along with the NFPA-211-2006 edition cover the installation requirements for solid fuel-burning appliances. A common misconception is if it is not installed in a building, then no permit or inspections are required. This is not true. Section 101.2 Scope from the MMC states, “This code regulates the design, installation, maintenance, alteration and inspection of mechanical systems that are permanently installed and utilized to provide control of environmental conditions and related processes within buildings. This code shall also regulate those mechanical systems, system components, equipment, and appliances specifically addressed in this code.” Therefore, permits and inspections are required. A question often asked is if a solid fuel-burning appliance can be installed in a garage. The answer is, no, it cannot. The NFPA-211 2006 edition, Section 12.2.4 states, “Solid fuelburning appliances shall not be installed in any garage.” Also Section 12.2.3 states, Solid fuel-burning appliances shall not be installed in any location where gasoline or any other flammable vapors or gases are present.” Additional questions may be directed to the Mechanical Division at (517) 241-9325.
As of August 20, 2010, the hydronics section on wood fired boilers is now law and in the code book. Listing and labeling is required unless the inspector is willing to provide an inspection under section 105 of the code.