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In doing so, I was referred to the website. I explained to Cindy that yes, I had been browsing and reading your <br /> website, and unfortunately it lacked specifications. Yes, it does say to "International Code" but which <br /> international code are you speaking of? Is it IS04000, IS09000, EU, UK,Netherlands/Amsterdam, Swedish, <br /> Bolivian, etc? As a world traveler, and having the power of the internet at my fingertips, I couldn't find an <br /> answer -this lead to other questions which is background to how I got to this point in dealing with the insurance <br /> company and the General Contractor Genesis Renovations, along with their sub contractor Home Comfort <br /> Heating and Cooling. <br /> I do not have notes, but I believe I was transferred from Cindy to someone else in your department to answer <br /> my question about specifications. I do remember that their response was surprising-that it is up to the <br /> contractor as they will know how to do the job properly. <br /> My questions: <br /> What should happen now that a contractor has gone in, done work, and presumably illegally and improperly <br /> installed an HVAC unit in my home? <br /> (I believe the response was a new contractor needs to apply for the permit, do the work properly, and have it <br /> inspected. I need this question answered on City of Everett Letterhead [PDF document is fine] so I can forward <br /> to my insurance company.) <br /> Please see attached <br /> What are the code requirements and specification for energy efficiency of an gas fuel electric motor driven <br /> updraft residential HVAC system of a two story home with the HVAC unit located in a basement? <br /> Short answer: ensure that the replacement equipment is the same size or smaller than the unit replaced. <br /> Generally, all new units available today are more energy efficient than the ones being replaced. <br /> Long answer: The 2015 Washington State Energy Code that governs the installation of new heating equipment <br /> in existing residential structures is Section R503.1 & R503.1.2. These sections direct compliance to Sections <br /> R403.1 (Controls), R403.2 (hot water boilers), R403.3 (Duct insulation) and R403.6 (Mechanical Ventilation). <br /> Sizing of efficiency is covered not by new construction standards, as are found in Section R403.7, but by <br /> Section R503.1 that requires the new unit be sized similar (or smaller) than the existing unit. If, however it is <br /> desired to comply as for a new installation in new construction under the current code Section R403.7 <br /> proscribes which design manuals govern (there is also a worksheet available from the WSU Residential Energy <br /> code website http://www.energy.wsu.edu/BuildingEfficiency/EnergyCode.aspx#PUBS). <br /> What are the venting/ducting requirements for such an HVAC system. Do the vents/ducts need to be within the <br /> wall, and if so, how routed in existing construction and what insulation requirements?If exposed,what material <br /> is to be used and size? Is it required that inlet air circulation vent not be a trip hazard? <br /> Section R403.3 regulates ductwork. The ductwork is required to be insulated to R-8 if outside of the building <br /> thermal envelope. Ducts need not be routed within construction. Duct material is any approved by the 2015 <br /> International Residential Code. Sizing of ductwork is a function of design work that is proposed by the permit <br /> applicant based on industry standards. Trip hazards should be avoided but are not directly addressed in the <br /> residential codes. <br /> What do you do in the case when manufacturer guidelines conflict with city code? <br /> Section 304.2 of the 1015 International Mechanical Code states that where conflicts between the code and the <br /> installation instructions occur, that the provisions of the code applies. Such a conflict should be brought up <br />