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Old 01-16-2018, 08:12 PM   #1
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AquaHot

Just curious about how low of temperature before the aquahot quits being effective?
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Old 01-16-2018, 08:21 PM   #2
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I would think it would have to Freeze Up before it would quit being effective. Mine has a heater (furnace register w/o a fan) in the tank compartment, which is to prevent cold weather freeze ups.

There is professional help on these units available on line at: Roger Berke: RV Hydronic Heater Repair - Home (RV Hydronic Heater Repair - Home)

Great source and great on line service. And he sell parts.
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Old 01-16-2018, 09:23 PM   #3
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I think I get your question? Obviously with the boiler firing itís most likely not going to freeze over unless extreme, very extreme conditions. How effective will it off set the interior temp vs. outside ambient temp? Same as s/b depends on your r factors and additional heating assist. I know my coach is not as well insulated as a Newmar DP or Entegra hung wall coach because of bat insulation. However, I donít ever intend to be in extreme northern climates. Iíve been in low teens with no issues. Hope that helps.
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Old 01-16-2018, 09:26 PM   #4
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We've been in blowing snow at 17 degrees and kept coach at 68 ... did pull in the big slide to reduce heated space and prevent snow build up on slide topper (windward side) ...
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Old 01-16-2018, 10:50 PM   #5
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I didn't intend to stay during the cold weather we are having, but circumstances dictated. After a fashion, I did bring in the 2 slides on the p/s. Noticed a quick jump in interior temp.
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Old 01-17-2018, 10:10 AM   #6
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Less about the AquaHot and more about the insulation values of your coach. The AquaHot will put out the heat, but it can only heat up a space as much as the space allows. If you have large thermal weaknesses, the unit will be less efficient than if you had a well insulated space you're heating.
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Old 01-17-2018, 10:19 AM   #7
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Quote:
Originally Posted by CarlAda View Post
Less about the AquaHot and more about the insulation values of your coach. The AquaHot will put out the heat, but it can only heat up a space as much as the space allows. If you have large thermal weaknesses, the unit will be less efficient than if you had a well insulated space you're heating.
Yup, well said.
Have been in -20 deg for a week at a time, slide's retracted.(2)100 watt bulbs in the dump bay (1) 100 watt bulb in the sewer/toilet vacuum pump/water shut off control bay.....Living spaces held a steady 72 deg.... no issues other than having to protect the sewer & fresh water hose's (leave them in the heated bays until needed then immediately return to heated bays.)
Depending on the coach build and the qualities/quantities of insulation..

Your results may vary.
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Old 01-17-2018, 10:28 AM   #8
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As noted, the Aqua Hot will put out plenty of heat as long as you have diesel fuel in the tank and it works as designed. We have been (not intended) in some very cold weather (low as 18 at night with lots of winds) and we have stayed warm. My coach has heated floors and we also have been using an electric space heater. If it were not for the heated floors and the addition of the space heater, I think the Aqua Hot would struggle to keep the coach as warm as we would like in really cold temps. We did not pull in any slides but that would surely help. One weakness in our coach is the placement of the AH heat exchangers. The exchanger in the bedroom is mounted under the forward corner of the bed which leaves the rear most portion of the bedroom a bit cool.
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Old 01-17-2018, 10:28 AM   #9
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Quote:
Originally Posted by Arby49 View Post
Just curious about how low of temperature before the aquahot quits being effective?
Going to depend on a lot of things. The amount of heat the furnace will produce remains the same in the boiler. It now depends on how well the coach is insulated, where you are sitting (sheltered or in the open) and the wind conditions.

I talked to a fellow who claimed he was in -40 temps with his coach. He said the only thing that froze was the houses water filter (which broke). No idea of what additional heaters and measures he took. We met him in service and he was called away so the discussion did not last long.
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Old 01-17-2018, 06:02 PM   #10
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We have had several days of sub zero weather... this morning was -3. Coach remains warm inside and no water lines frozen. Beaver coaches are well insulated though, including basement compartments. Insulation and a well maintained aqua hot are key.
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Old 01-18-2018, 09:59 AM   #11
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The AH, when the burner is turned on, works as a furnace. Just like your home furnace...never too cold.
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