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Thank you. TANSTAAFL

We've put in a few cellular blinds which do a nice job cutting heat loss with some of the windows and may simply be pushed up during the daylight hours. Outlet and switch cover foam plates are done. I used a plastic "V" weatherstripping on the doors (which I remember using on my first house 40...

Total newbie here. Looking to experiment with one or two 12V PV panels and some 12V PTC heaters. I've seen some videos on YouTube where a 12V PTC heater like this is connected to a PV panel allegedly producing 100W in bright sunlight. Okay, but what if it's a partly cloudy day and the PV panel...

I am a total noob so I want to start small and run a few tests. I sketched out a very small system and I wanted to run it by some people (here) who undoubtedly, know 1000% more than I. The system would consist of the following: - DIY solar air heater about 4' x 3' with maybe 2.5" of airgap...

So, how many panels does it take to generate 1kW of power? I'm not sure whether the above was just a theoretical example or something specific to my question. But if I use that formula with 120v, then would this be correct: 6kWh = 50 AH x 120V ? As my heaters are 120V and the 6kWh is the amount...

Thanks. ? That would have been a truly worthless purchase. I picked that one by mistake but, as I read more details (of other 12V designs) I'm thinking that any of the 12v PTC ceramic heaters wouldn't be useful for anything larger than a chicken coop. Here's the YT video that got me started...

I appreciate all the suggestions; however, there are things that would make a heat pump not the right answer in my situation. I won't detail all of them as it would just bore you. I'll just express my thanks for the suggestions.

Before I follow Alice down the rabbit-hole... I live in a mfr'd home with little opportunity to upgrade insulation so that's not an option. This post/question only concerns winter heating, not summer cooling. I have a propane furnace and have found I'm able to reduce its use in the winter...

Firstly, thank you for giving this some attention. Unfortunately, my house has very little usable south facing exposure as there's a carport that runs the length of the house on the south side; think manufactured home. There's that south facing wall (without a window) of the workshop that...

True in most cases. However, an older manufactured home started with less insulation. The majority of the roof has no attic; just the rafters and some batting/vapor barrier between the inside ceiling panels and the roof decking; no practical method to add insulation unless I do a drop ceiling...