I am just beginning to research this topic and find that there are many more options than I originally thought. So far one of my favorite products is the Envi wall mounted heater. It only weights 10lbs. And is run on the standard 120v.
I am continuing to read up on this unit and encourage you to… Knowledge is power right! Here is a link to their site http://www.eheat.com
If you prefer a wood burning stove I found a great option and the reviews are extremely positive! You can read more here:
Whatever you prefer that there are many more questions you need to answer first before settling on the best option for you.
– You will need to calculate the btus you will need your heater to provide.
– Find the clearances you will need for you heater in your tiny home.
– Even consider what it will look like in your tiny home.
These are just a few things to think over. I know I am and will provide feedback with our experiences along the way!