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Thread: Why no filter on the furnace?
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08-03-2019, 10:36 PM #1
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Why no filter on the furnace?
We have been looking at RV,'s for 3 years before we decided on our 2450RL that we get August 12. I asked the salesman that has been selling units for years the same question I have asked probally 6 sales people why is there no filter on the furnace of an RV, none have known why. Our SeaRay HVAC system had a filter, there's a filter in the RV ac unit why not the furnace. There is a fan drawing air and pushing it across the heat exchanger just like my home furnace so why no filter seems like a weak area that could cause problems. So any answers or a good guess?
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Sent from my SM-G960W using TapatalkLast edited by iproff1; 08-04-2019 at 10:32 PM.
2020 Imagine 2450RL
Wasaga Beach Ontario Canada
2019 F150 Lariat 2.7 Trailer Tow Package
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08-04-2019, 05:17 AM #2
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Not sure other than cost savings. We had a Winnebago motorhome with a basement mounted heat pump and it had a standard household filter on the return. It also had a LP furnace with no filter.
Maybe the heat exchanger in LP furnaces gets so hot it burns off dust that comes through?? so a filter is not needed.2019 Solitude 384GKR
Stored, used at Myrtle Beach, SC
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08-04-2019, 07:08 PM #3
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This is an interesting question. Wish I had an answer.
2018 Solitude 375 RES 2022 F450 Powerstroke Dually
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08-04-2019, 07:59 PM #4
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I think I was told if there was a filter used it would restrict the air flow enough that the heat exchanger would over heat. I also know that the farther heat ducts (registers) need all the air flow they can get just to get air out of them.
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