2013 cheap popular gas boiler

Product Description

We invented positive displacement condensing gas-fired heat-exchanger device which was in ahead at international level. This technique supplies a gap in domestic gas burning and heat exchange technique and applied national patent. Products with this technique not only have extremely high heat exchange efficiency, but the end gas also approaches to zero emission. Therefore, this product has been cognized as First Grade energy efficient product by CGAC, and received related cognition and logo licensing files.
Heat exchange enables the thermal efficiency to reach over **0%.
First grade energy efficiency standard
Large screen liquid crystal display showing burning condition
Method of compulsory balancing supplying and discharging gas
*4 hour freely setting
Large capacity of bathing hot water
*8 protection measures
Temperature limit protection for heating water
The limit temperature protection
Voltage stabilization protection for gas
Protection for lacking of water in the system
Volume protection for hygienic water
Overpressure protection for water in the system
Pressure stabilizing protection for heating system
Anti-oxygen corrosion protection
Manual recovery protection for gas-ceasing period
Wind pressure protection
Flameout protection function
Pre-purge function
Post-purge function
Anti-block protection
First grade anti-freezing protection
Second grade anti-freezing protection
IPX4 Insulation Protection