Heaters

Pimpjuice9906 said:

What size is your tent?

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4x4

@calvin.m16 @HydroKid239 @Roadblock007 @SofaKingHigh_

It's been 42 hours since going into the soil. Environment is great. 65%rh, 82°F, fan and exhaust on.............hasn't broken the soil. I'm in soil that says less watering. A peat and coco mix. I watered each at 7pm yesterday roughly 25mls. It appears moist as the bag has condensation and the soil is not dry to touch and the sides of the cup show condensation inside the length of the cup. I won't water up I see it's drying out.

HydroKid239 said:

This heater is by Newair first pic shows a view from above which shows how slim it is. It’s oil filled and connected to a thermostat controller. Keeps the tent above 74F at all times. Lights on I’m only getting as high as 78-79F. Lights at 25% of 480w max output. It ran me like 50 bucks on eBay, worth it tho. I’ve had it for 4 runs now. View attachment 5090600View attachment 5090601

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What are your outside of tent ambient temperatures? And how hot does it get the tent wall that it’s right next to since it heats from both sides? I ask cause I’m trying to figure out a better way of heating mine and I want something thin, light and will be hanging it from tent poles (possibly reinforce if needed). I’m running an rdwc so would rather it not be on the floor applying heat to my nutrient solution

How about a 15sq ft radiant electric floor heating mat kit installed in a 4x4 tent?

It's even water proof, made for bathrooms, etc.

Lay down the matting, then set the tents flood liner over it, then lay in some 12"x12" ceramic floor tiles on top.

Might have to make some frame first, and put self leveling thinset under the nice looking tiles, as thats what the guide calls for. Not sure.
You would end up a heavier panel that sets on the floor, but still....

You might end up with the best standalone tent heating system there is?

Foam would insulate RDWC containers from a radiant heated floor, and still allow the heat to radiate upwards without going into the solution so much.

I have to insulate mine from the cold floors if anything, and use pieces cut from a yoga mat. Hot or cold, works either way.

Stomate said:

What are your outside of tent ambient temperatures? And how hot does it get the tent wall that it’s right next to since it heats from both sides? I ask cause I’m trying to figure out a better way of heating mine and I want something thin, light and will be hanging it from tent poles (possibly reinforce if needed). I’m running an rdwc so would rather it not be on the floor applying heat to my nutrient solution

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Temps are around 70-72F in the room. It dips a few deg at night. The tent is set at 73F thru a separate thermostat, and will only kick on when needed. The heater sits about 4” from the wall. Not sure how warm the tent wall gets exactly, but it does radiate heat from both sides.
Is it possible to run a duct into your grow space blowing in heat?

just something to note, i have 3 hygrometers (including a caliber iv) in my closet and although it might be less than other types, my oil filled heater absolutely lowered the humidity in my already low rh% closet.

If the water heater was nearby and you’re a handyman, (and if electricity wasn’t cheaper than copper pipe) you could get creative and run the output through some radiator/manifold under the floor.

You could just pump it through one of those cheap on demand portable hot water heaters, through pex tube coils in the floor.

You could even use the exhaust from the propane burning to generate the c02.

Radiant floor heater/ c02 burner all in one unit

^ that's basically what i'm designing for my new semi dryvan grow trailer. Its also gonna have a large water tank to act as a heat storage battery (like putting black barrels in a greenhouse but without the sun heating it), so I can release the built up heat from the tank back into the grow when the lights are off, through car radiators\heater cores.

Also, Im gonna dig a 50 ft x 5-6ft deep trench next to the parking spot, and bury more coils of poly tubing, and have yet another geothermal loop system that keeps the trailer at constant underground temperature whether its summer or winter. Around 50 degrees, making it super easy to heat or cool with little energy.

My in-laws that live in a time zone that’s a 12-hr time zone difference (not joking) use plastic tubing layed out like a radiator in the house’s slab. A few places that use to have old fashioned radiators for heat now also have a manifold of pvc valves tucked next to them, to micro manage the flow so you can make greater flow go through the piping at the edges of the slab or tune it down in unused rooms. The settup is a bit 2nd-worldish but is asswoopin. It’s powered and adapted off the old gas boiler circulating hot water to the old school radiators in the house. It’s an adapted system, only thing original is the boiler, which I bet if I look next time it probably has a hammer and sickle stamped on it, I bet.

They use to, a couple decades ago, have a bypass hooked up to their swimming pool to heat it. I asked him how he avoided any contamination issues with the hot water supply. He laughed good at me, because there’s a reason my wife insists I brush my teeth with bottled water everytime I’m there.

Radiant floors are so nice. Every time I visited my friends place, I would fall asleep watching movies down on the floor. Nothing like a warm hard slab to lay on.. heck with the comfy couches\beds. It just feels different, and I can only imagine that plants feel the same way.

Now days they are even more efficient with the on demand heat units. No heating up a big tank\boiler, just use exactly what you need. All zoned out too, like you say, only heating some rooms\areas.

Looks very DIY friendly if you wanted to make a smaller system from scratch. On demand propane heaters are budget friendly, and tubing is cheap...

Heat & Hydro don't go together.

An oil filled radiator works great. Really did my plants well. 1st Grow lessons. I had to take some of the air down. It was too much on the plant. Day 26 and I started LST today.

Water heating/cooling and hydro are the kind of things that tickle my fancy. Geothermal, heat recovery ventilators, Homemade mini splits/chillers..

I add aquarium heaters to R\DWC systems almost every year I run them at some point. Winter I keep them hooked up to a temp control at all times, incase it dips down.

Up in the P North North W, I've kept 12 week outdoor hydro plants going into late November, after the frost. All thanks to heat.