Wrknrvr Posted October 3, 2017 Report Share Posted October 3, 2017 This is some info that I have seen on some RV's. If you have a Atwood water heater in your RV it maybe leaking air around the unit. When they manufacture the outside mounting metal they punch long thin holes in a line so that the mounting flange will fold over. They do this so the unit will fit in a smaller box for shipping. If you look at the water from the inside of the RV, with the outside lid down you may see the openings I am talking about. You can see the slots on the outside, but they do not really see like a problem. A 1 inch long slot, 1/16" wide, will add up to a 1inch hole if there are 16 slots. Now if you have room slides then there is a possibility of air infiltration around the support arms. May be interesting to make them less drafty. This subject could use some discussion for ways the help. if you have exterior doors for storage and access do they leak air. Now that is something else that can leave unwanted air in. If you have a fifth wheel then there is the possibly of air infiltration the hitch assembly exits the body area also. Is there any possible openings on the underbelly that can leak air in. This may affect the heating and cool costs and comfort of the people inside. Just thinking as it was snowing at our summer location. Safe Travels, Vern Link to comment Share on other sites More sharing options...
Kirk W Posted October 3, 2017 Report Share Posted October 3, 2017 It is a good time to be thinking of stopping any air penetration openings before cold weather arrives. Most of us don't deal with that until we get cold... Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Ray,IN Posted October 5, 2017 Report Share Posted October 5, 2017 Yep, low-expansion foam is an RVers friend. There is a new brand of foam on the market that appears to outdo the rest, http://www.fireprotectionsupplies.com/sprays-foams/abesco-fp200-fire-rated-expanding-foam 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA ." And so, my fellow Americans: ask not what your country can do for you--ask what you can do for your country. John F. Kennedy 20 Jan 1961 Link to comment Share on other sites More sharing options...
Kirk W Posted October 5, 2017 Report Share Posted October 5, 2017 Thanks, Ray! And your link got me to looking farther to find that there are now several other brands of fire retardant expanding foams. If you look on Amazon Marketplace there are several others. Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
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