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Old 11-18-2020, 08:55 PM   #1
1 Rivet Member
2021 27' Globetrotter
1972 23' Safari
Central NJ , New Jersey
Join Date: Jul 2004
Posts: 11
Interesting tankless Hot Water activity

Hello all,

I was just outside wrapping some items up for the day, including the Airstream.

I’m in central NJ - outside temp at 32f.

When I went to power down and lock up, i noticed the vent for the tankless heater was running- pushing out somewhat warm air- but not nearly as much force or heat as when it is actually operating.

The trailer is winterized- blown out lines and antifreeze run through the water system.

I’m wondering if the tankless HW heater will cycle in some manner to keep things warm when the temps are at or below freezing? Everything else (including the furnace and heat pumps) were off.

Just something to take note of- the specially if your propane is running low- this tankless heater might be something to watch more closely!


William D is offline   Reply With Quote
Old 11-18-2020, 09:59 PM   #2
Rivet Master

2007 22' International CCD
Corona , California
Join Date: Jul 2013
Posts: 8,773
I do know that my PrecisionTemp 500 series will keep itself warm in freezing weather if it has propane and power. It comes on at low heat and prevents freezing.
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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Old 11-22-2020, 07:35 AM   #3
New Member
Vestal , Arizona
Join Date: Sep 2020
Posts: 4
Same here, the 2021 23’ TFB , RV thermostat was shut down, the LP tanks were shut down, the RV was connected to the shore power. Curious why it would intermittently turn on and off.
Airstream technical support had a long wait but will try and contact again unless more explanations from other RVer’s solves this puzzle.
Sanjay is offline   Reply With Quote

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