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I <br />'I r,, ph.,ne 4737357 <br />1 <br />CITY of ORONO <br />fust Offuv Box 660t'rystal Bay, Miane»ota 553'230 Municipal Offices <br />Ar. Wainer Wittmer <br />1429 Baldur Park Road <br />Wayzata, <br />Minr esota 55391 <br />Dear Mr. Wittmer: <br />On the North Shore of Lake Minnetonka <br />March 4, 1980 <br />While making inspections in the area, I made a progress inspection <br />of your addition. While I was there, I noticed that you had installed <br />a new wood burning stove without a permit and without installation <br />inspections. I am concerned because of several serious safety problems <br />noted as follows: <br />1. Manual damper in gas vent connector prohibited (SBC 7408(a)). <br />Damper closes flue and allows products of combustion to enter <br />house - asph-xiation hazard. <br />2. Vent connector installed with downward pitch prohibited <br />(SBC 7407, Pitch) - c:oes not allow gas appliance to vent <br />properly and wood burning unit can back vent into gas <br />appliance. <br />3. Vent connector passing through wall without thimble <br />prohibited (SBC 7404, Clearance). The thimble is to provide <br />proper clearances and firestops. <br />4. Gas appliance connected to wood burning unit flue prohibited <br />(SBC 7407). <br />5. Wood burning unit does not have proper testing or certification <br />(SAC 103-7) Without testing or certification, clearances to <br />combustibles, proper installation, operation and maintenance <br />cannot be assured. <br />6. Clearances to combustibles (4" existing) have not been met. <br />(SBC 8406) must be 36" from unprotected combustible wall. <br />7. Chimney height is not high enough - must be 2'-0" :&bove <br />ridge of house (SBC/UBC 3703(f)). <br />8. Permit is required for installation of furnace and woodburninq <br />unit (Orono Ordinance No. 20.030). <br />