Desa unvented (vent-free) blue flame gas heater safety information and installation manual gwn20ta, gwp20ta, gwn30ta, gwp30ta, wmn20a, wmp20a (28 pages)
Desa safety information and installation manual unvented (vent-free) propane/lp gas heaters gmp16, gmp16t, gmp26, gmp26t blue flame: gmp20bt, gmp30bt (32 pages)