Apparently I need a new hot water service. The tenant has suggested something that makes sense to me, I want to know what you guys think. Currently I have two problems, the hot water service was installed on a timber deck causing it to bow. The tenant said that if I put in a continuous flow hot water service and mount it on the wall he could fix the deck for a slab. (He's a chippie) I don't know how comfortable I am with the situation, but it does make sense. Originally I was planning to fix the deck anyway. My understanding would be that replacing the hot water service would be tax deductible but the deck wouldn't be (recent purchase so the deck would be capital in nature). So in that sense the tenants suggestion is win win. He gets a better hot water system and I can get 35% of the cost back at tax time. Additionally I get my deck fixed at no cost and with little stuffing around. (And I need to fix the hot water service anyway) What are peoples thoughts on this?