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� � <br /> Summary ofApri115,2000 Energy Code Requirements for Detached 1&2 Family Residential Buildings <br /> Code re uinmmt O tion A-Chs ler 7670 Cate a i as amended b Lxws of MN 2000 Ch.407 O don B-Dlinnesota Ruln CNa ter 7672 <br /> 10. Methods for com Ifance/Ener Calculations <br /> Component Equations specified. Trede-offs permitted. Uavelue equations and tables of ineny building oltments given in Chapter <br /> perCortnence(Uo) 7678. Uo-velues of elements not listed in Chapter 7678 must be <br /> method calculared b re istered en ineec'7'rade-affs ertnitted. <br /> Cookbook table Based on fumecc efficiency of 78%. Doors must be U-03 or less or 1 "wood with Based on furnece e�ciency of 90%. Srortn door noe required. R-10 rim <br /> storm. R-19 rim joist. Vaulted ceilings required R-38 plus R-S sheathing. joist.No insulated sheathing required for vaulted ceilings. Table <br /> Poundation wafl insulation must be R-10. ex ended to ellow R-S R-10 or R-19 foundation wall insulation. <br /> MNcheck Not addmssed in code. Trade-otTs permitted. MNcheck is specifically cited in the code as en epproved rool ro <br /> cam liance rool demonstrate com liance. Trade-otfs ermitted. <br /> Design by systems References the Model Energy Code,1989 edition. Trade-offs permitted. References the Model Energy Code,1995 edition. Trade-offs permitred. <br /> anal sis method <br /> Heated three-season Heated three-season porch is included in energy calculations for the rotal building. The porch may be calculated separately-allowing unlimited window <br /> porch method eree. The porch heating system must be ebk to be shut off completely, <br /> end the wall separating the porch from the living space must mcet the <br /> same re uirements es an exterior well. <br /> 11. HAVC <br /> Duct insulation R-8 for ducts outside conditioned s aces. Same. <br /> Duct sealing Trensverse&longimdinal joints seeled for ducts outside conditioned speces. Seel Same,including an additional requircment that ducts outside the interior <br /> where heating&cooling ducts penehate the exterior envelope. air bertier(including in exterior walls)must be sealed with a product <br /> meetin UL Standard 181 or e uivaknt. <br /> Fuel buming Buildings having fuel buming equipment using nonsolid fuels for space heating, Fuel buming equipment chosen will detevnine which one of five <br /> equipment service water heating,or hearth praducts must install direct vent,power vent,or prescriptive paths must be followed. <br /> sealed combustion e ui ment. <br /> Combustion air Must be installed er stah mechanical code Cha ler 1346 Same. <br /> Protection egainst If any single exhaust device over 300 cubic feet per minute is installed,sealed Prescriptive path chosen iden6fies required make-up air for exheust fans <br /> excessive combustion space heating equipment or an alternative make-up e'v source must be end CO dMecrors. Addifional perfortnance path options available. <br /> de ressurization used. <br /> 12. Residential ventilation <br /> Outside air A residentiel ventilation system must be installed that,by mechanicel meens,is A mechanical residential ventilation system must be installed which <br /> requirement capable of introducing and dishibuting outdoor air to all habitable raoms and replaces,by direct or indirect means,air from the habitable rooms with <br /> removes indaor air at a rate of not less then 0.35 air changes per hour,or IS cubic outdoor eir at e rate af at least 0.05 cfm per square foot of floor area. <br /> feet per minute per bedroom plus en additional 15 cubic feet per minute,whichever <br /> is rwter. <br /> Sysrem Must be installed in ecwrdence with manufecturer's inswctions. System fens must be quiet(1.0 sones for surface mounted fans)and rated <br /> re uirements for continuous use. Man additional re uirements a I . <br /> - Page 19 of 34-Source of summary: Minnesote Departmmt of Commerce Energy tnformation Center 651-296-5175 or 800-657-3710,H�•�v.commeme.sta[e.nm.us. 4/00 <br />