By using renewable heating, you can reduce your carbon footprint and reliance on fossil fuels, and so you’ll be doing your bit for the environment. If you also have energy efficient windows, you’ll save more – check out the cheapest double glazed window designs.
You can’t just take it always in when it’s raining. What happens if you’re not home at that time? So the wood needs to be properly protected for best and long lasting results – maybe inside a conservatory? (A “standard” lean to conservatory is likely to have a simple flat sloping roof).