Does anyone have or heard of these?
SunMaxx ThermoPower Direct Flow Evacuated Tube Solar Collectors | Solar Thermal Manufacturer & Distributer They are a vertical mountable Evacuated Tube Solar Collector. They make a 20 tube 22.8 thousand BTU or a 30 tube 22.7 thousand BTU model.
Of course they don't have a price on the website, I hate that. I'm interested because of the higher temps available and the cold weather/overcast day production ability. I also have to have the ability for vertical mounting because I want them on the side of my building.