20 Kw Double Heat Exchanger Combi Gas Boiler for Home Heating

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 20kw
• Certification: ISO9001
• Heating Type: Nature Gas
• Open Therm: Optional
• Structure: Plate Exchange/Bithermic
• Water Circuit: Plastic / Copper
• Low Voltage Start: Yes
• Low Pressure Start: Yes
• Transport Package: Cartton
• Specification: 16kw-24kw
• Trademark: OEM
• Origin: China
• HS Code: 8403101000
• Production Capacity: 240, 000PCS/Year

Product Description

 

Model		18kw	20kw	24kw	28kw	32kw	36kw	40kw	45kw
Gas Type	/	Natural gas(12T)
Gas Pressure	Pa	2000
Rated max./min. heat load of CH	kw	18/6.3	20/7	24/8.5	28/9.8	32/11.2	36/12.6	40/14	45/16.5
Rated max./min. heat output of CH	kw	16.5/5.5	18/6.1	22/7.2	25.5/8.3	29.3/9.5	32.4/10.7	36/11.9	40.9/14.3
Rated heat load of DHW	kw	18	20	24	28	32	36	40	45
Rated min. heat load of DHW	kw	3.1	3.1	3.5	3.9	4.5	5	5.6	6.3
Rated min. heat load of DHW	kw	2.6	2.6	3	3.3	3.9	4.2	4.7	5.3
Ignition power	kw	10	12	14.4	16.8	19.2	21	21.6	24.5
Thermal Efficiency (At rated input power)	%	92	92	92	92	92	92	92	92
Thermal Efficiency (At 30% input power)	%	90	90	90	90	90	90	90	90
Max. water pressure of CH system	MPa	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Min./Max. CH Water Temperature	°C	30/80	30/80	30/80	30/80	30/80	30/80	30/80	30/80
CH Water Temp. Adjustment Range (Radiator)	°C	30-80	30-80	30-80	30-80	30-80	30-80	30-80	30-80
CH Water Temp. Adjustment Range (Floor Heating)	°C	30-60	30-60	30-60	30-60	30-60	30-60	30-60	30-60
Max./Min. DWH Water pressure	MPa	0.8/0.025	0.8/0.025	0.8/0.025	0.8/0.025	0.8/0.025	0.8/0.025	0.8/0.025	0.8/0.025
Min. flow of DHW	kg/min	3	3	3	3	3	3	3	3
Rated Water Capacity (Δt=25ºC)	kg/min	8.3	10.3	12.6	14.6	16.8	18.6	20.6	23.2
Expansion Tank Volume	L	6.5-8	6.5-8	6.5-8	6.5-8	8-10	8-10	8-10	8-10
Reference gas consumption (NG 12T)	m3/h	0.65-2	0.75-2.15	0.91-2.58	1.05-3	1.2-3.43	1.33-3.81	1.58-4.28	1.72-4.65
Heating Area	m^2	65-110	70-120	90-150	120-200	160-260	200-310	250-360	290-420

We specialize in the production of wall-hung boilers, fully premixed low-NOx commercial boilers, intelligent controllers, etc. We have passed the ISO9001 quality management system certification, and use frequency conversion technology and low nitrogen technology to improve the product efficiency of conventional wall-hung boilers and fully premixed condensing boilers.

 

 2 fully automatic production lines, equipped with test benches conforming to international standards and national laboratories, apply MES, SRM, WMS system for digital information management ,with a daily production capacity of 800 units.