Replace your old mechanical thermostat. Installing a new programmable thermostat will save you money!
Commercial replacement of two existing boilers with new Veissmann
Most manufacturers recommend annual service on all gas fired appliances and in some cases will void the warranty for lack of service. Regular maintenance can provide for better efficiency and prevent premature failure, both of which can result in substantial cost savings to the homeowner.
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The gray water line is Polybutylene (Poly-B for short) and is no longer manufactured. The product line was discontinued due to the potential for breakdown given certain chlorine levels in the water and a particular kind of fitting, both of which were not an issue in Canada. These pipes, given they are correctly installed, will most likely outlive the house here in Canada and should not be a cause for concern. Poly-B has given way to a number of different waterline manufacturers, the most common one being Crosslinked Polyethylene, better known as Pex, used extensively as a substitute for more expensive plumbing systems such as copper.
See the following link for more info:http://www.pexinfo.com/
