Burnham's 2006 spring promotion allows contractors to earn $25 - $35 gift cards to its collection, which includes apparel, golf items, coolers, tools and much more. For each Burnham boiler purchased from Apr. 1 until May 31, 2006, a contractor can earn a $25 gift card. Also, for each SCG, PVG, Spirit, 2PV, MPO or MPO DV boiler purchased during the same time they can earn $35.