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What size of dehumidifier do I need?

fulltimecanada
Explorer
Explorer
Hi there, we're looking for some advice on what size of dehumidifier we should purchase? We're currently in Tofino, BC where it's very humid and rains a lot. We've wrapped windows, keep our ceiling fan going, and have both a small dehumidifier and a refillable dehumidifier.

We're still getting some condensation on the walls as the temperature starts to cool down more. We realize it's time to get serious about purchasing a full-size dehumidifier but we're unsure of what size. We've seen the sizes range from 30-70 pints. We really need this unit to solve our condensation problems so we'd love to know your thoughts/recommendations about sizes and even models. This is one we were looking at: http://amzn.to/2gdMbLz

Thanks in advance!
7 REPLIES 7

ORbiker
Explorer
Explorer
We have vent covers on all the roof vents. We have the bathroom vent open most of the time. The warm moist air leaves through the open vent.
Backpacker and tent camper all my life. Motorcycle trips with a tent too 1978 to Present. 2016 Grand Design 380TH as of 10-29-2015. Now a New 2018 374TH-R Solitude as of 3-16-19. 10-19-18-traded truck for a 2016 Ram 3500 DRW Laramie Crew Cab 4x4 Long Box.

doxiemom11
Explorer II
Explorer II
Heating your rv will help. The furnace blowing helps dry out and circulate the air.

fulltimecanada
Explorer
Explorer
pianotuna wrote:
Hi fulltime,

I'm from SK.

As outside air is cold the relative humidity is often high. When that cold air is heated to room temperature the relative humidity drops.

Opening the roof vent allows humid hot air to escape from the RV, while the window allows cold air in.

To stop condensation on the walls, their temperature must be above the dew point. Running an electric heater beside or below the open window will help that happen.

If the ambient temperature is warm enough to run the roof air conditioner safely, it can be run, while running an electric heater at the same time. That turns the roof air into a giant dehumidifier.

Try to avoid cooking on the propane stove. Use an induction cooker (NuWave is the best of the best) or hot plates.

Don't forget to protect the fridge from freezing.

There is a lovely long thread on cold winter camping under the Full Time forum.


Thanks for that explanation, I appreciate it and will give it a try!

pianotuna
Nomad III
Nomad III
Hi fulltime,

I'm from SK.

As outside air is cold the relative humidity is often high. When that cold air is heated to room temperature the relative humidity drops.

Opening the roof vent allows humid hot air to escape from the RV, while the window allows cold air in.

To stop condensation on the walls, their temperature must be above the dew point. Running an electric heater beside or below the open window will help that happen.

If the ambient temperature is warm enough to run the roof air conditioner safely, it can be run, while running an electric heater at the same time. That turns the roof air into a giant dehumidifier.

Try to avoid cooking on the propane stove. Use an induction cooker (NuWave is the best of the best) or hot plates.

Don't forget to protect the fridge from freezing.

There is a lovely long thread on cold winter camping under the Full Time forum.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

fulltimecanada
Explorer
Explorer
pianotuna wrote:
Crack a roof vent and crack a window. Put an electric heater near the window.


Can you please elaborate on this thought. Would love to know how this can specifically solve my problem. Thank you.

pianotuna
Nomad III
Nomad III
Crack a roof vent and crack a window. Put an electric heater near the window.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

donn0128
Explorer II
Explorer II
The biggest one you can fit in would be mymsuggestion.