Showing Slide 1 of 4: 1.Flat plate solar water heater

Enamel Steel Flat Plate Solar Geyser with Jacketed Tank for Residential DHW

Enamel steel pressurized flat plate solar geysers with double circulation system and 0.6Mpa working pressure are engineered for residential DHW and space heating. Linuo Ritter supplies certified OEM solutions with 30+ years service life and 76% thermal efficiency.

1. Blue titanium absorption coating, achieving a thermal efficiency of up to 76%.
2. Enameled steel/stainless steel inner tank, with a service life exceeding 30 years. Pressure-bearing design ensures stable outlet water pressure.
3. Closed-loop dual-circulation system, ethylene glycol antifreeze medium, operating in a wide temperature range of -30℃ to 90℃.
4. Adaptable to both pitched and flat roofs, with a 35° adjustable tilt bracket.

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Heat Collector Core: Copper-aluminum laser-welded structure ensures rapid and leak-free heat conduction and excellent corrosion resistance.

Absorbing Coating: Blue titanium selective coating achieves an absorption rate ≥0.93, leading the industry in heat collection efficiency.

Transparent Cover: Low-iron tempered glass combines high light transmittance with impact resistance, strong weather resistance, and durability.

Frame and Back Panel: Lightweight design with anodized aluminum and galvanized steel plate, guaranteeing a 30-year service life.

Inner Tank: Food-grade SUS316L stainless steel/enamel steel, withstands 0.6Mpa pressure, and prevents scaling.

Insulation Layer: High-density polyurethane foam achieves a temperature drop of ≤5℃ after 48 hours, with extremely low heat loss.

Jacketed Heat Exchanger: The stainless steel corrugated pipe structure provides strong pressure resistance, high heat exchange efficiency, and easy maintenance.

Antifreeze Medium: Food-grade ethylene glycol solution, environmentally friendly and non-toxic, will not freeze in extremely cold environments down to -30℃.

Item		P-JF2-150/1.5/0.70	P-JF2-200/2.26/0.70	P-JF2-250/3/0.70	P-JF2-300/3.76/0.70
Volume of Tank-Collector gross area		150L-1.5m2	200L-2.4m2	250L-3m2	300L-4m2
Number of solar collectors		1	1	2	2
Flat plate solar collector	Dimension （W×L×H)	1500100080mm	2000x1200x80mm	1500100080mm	2000x1000x80mm
	Gross Area	1.5m2	2.4m2	3m2	4m2
	Efficiency based on Solar Keymark ISO9806	0.741	0.741	0.721	0.721
	Glass Cover	low-iron super-white reinforced glass /3.2
	Riser type	laser-welding, harp type copper pipe
	Absorber Plate	Aluminum, δ=0.4mm
	Absorber coating	Selective blue titanium
Tank	Inner Tank Material /Structure	Enameled SPCC/Tank-in-tank
	Inner Tank Main body/side cover thickness	2.5mm
	Outer Tank Material	Painted Steel
	Outer Tank Thickness	0.426mm
	Jacket Volume	6L	7L	7L	11L
	Insulation Material	Polyurathane,54mm
Bracket material		Galvanized steel, for flat roof installation
Electric Heating Rod		Included, 2000W, automatic operation, used for rainy and cloudy days
connection pipe between the collector and tank		Included, 2 pieces of corrugated pipes
TP valve for the water circuit		Included, G3/4″, 0.7Mpa, 99℃
Pressure valve for the anti-freezing medium circuit		Included, G1/2″, 0.2Mpa
Single-way safety valve at cold water inlet end		Included, G3/4″, 0.7Mpa
Fitting connectors of flat plate solar collector		Included
Magnesium rod		Included
Circulation type		Indirect circulation, anti-freezing medium and showering water circulate separately in 2 circuits

Flat Plate Solar Geyser Description

As a leading manufacturer of flat-plate solar water heaters, Linuo Ritter supplies enameled steel pressurized solar water heaters with thermal efficiencies up to 76%, equipped with a dual-circulation system. These compact solar water heaters feature a stable operating pressure of 0.6 MPa and an antifreeze glycol loop, ensuring reliable domestic hot water and space heating even in temperatures as low as -30°C. Our wholesale solar thermal systems cover a range of 150-300L(S) series, suitable for pitched and flat roof installations. We have an 80,000 square meter automated factory, providing bulk supply and OEM customization services to global distributors and project contractors.