1. 58mm DGV vacuum pipe; 2. non-pressure solar collector; 3. good performance with reasonabe price;

Non-pressure compact system, a most economic system with higher efficiency, works depend on gravity. It should be installed on the roof as top as possible to get enough hot water flow pressure. The simple controller can be used to show water temperature, level and control cold water supply or electric element work at setting time. 

 

Specification:

Model	Absorb area (m²)	Water tank capacity (L)	20GP/40GP loading qty (sets)
JT420-47/1500-18	0.93	100	60/116
JT420-47/1500-20	1.04	110	56/108
JT420-47/1500-24	1.24	130	47/91
JT420-47/1500-30	1.55	165	37/85
JT470-58/1800-20	1.62	165	37/71
JT470-58/1800-24	1.944	200	32/61
JT470-58/1800-30	2.43	250	25/48