I think there are large room diy heat pumps. "diy mini split heat" found me this [0] for example.
Also, depending on your hackerness, you could adapt window air conditioners.
From what I've seen, solar PV for heat only really makes sense if you're using a heat pump. But solar thermal for heat can be good, though. http://builditsolar.com has a number of DIY heating projects for X,000 USD in materials.
Also, depending on your hackerness, you could adapt window air conditioners.
From what I've seen, solar PV for heat only really makes sense if you're using a heat pump. But solar thermal for heat can be good, though. http://builditsolar.com has a number of DIY heating projects for X,000 USD in materials.
[0]: https://hvacdirect.com/perfect-aire-12-000-btu-22-seer-quick...