Should the Huangming balcony solar water heater be installed on your own balcony or on the upstairs

I use Linorite solar energy. I installed it on my balcony because it works under pressure and can produce hot water even if it is hotter than the bathroom faucet. It depends on tap water. Hot water. When the water supply is cut off, even if you install it on someone else's balcony, no one will be able to use it! The temperature here is between 50 and 60 degrees in winter! I think Huang Ming and Linuo are both big brands and there shouldn't be much difference between them. But I find that Linorite’s after-sales service is particularly good! You can consult them, their installation is also more professional. Shop around, hahaha, I'm not advertising them, just giving you a suggestion. His phone number is 7070333. I don't know the other numbers.