Solar expansion vessel

Mastersol FS1 expansion vessel for a solar closed circuitCode: FS1

A 1-litre closed expansion vessel for the closed circuit of a solar water heater. It connects to the cylinder and has a port for a 2.5 bar safety valve.

23.73 €incl. VAT
In stock · delivery or pick-up in Patras
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  • Delivery across GreeceBy courier or freight, depending on size. The cost is shown at checkout, once you enter an address.
  • Pick-up in Patras171 Ag. Ioanni Pratsika St · Mon–Fri 08:30–17:00, Sat 09:00–14:00
  • Installation by a partnerPartner installers across Greece.

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Description

A small part, more protection for your solar heater.

The Mastersol FS1 is a 1-litre closed expansion vessel for the closed circuit of a solar water heater. At the bottom it has a thread to connect to the solar heater's cylinder, and on top a port for a 2.5 bar safety valve.

With the vessel, the closed circuit loses less heat-transfer fluid and the water heater runs more efficiently. The risk of collector damage in the winter months drops, and the safety valves are protected from thermal expansion.

Mastersol gives a 10-year warranty on the cylinder of its solar water heaters, instead of 5, when an overheat valve (94°C / 6 bar), a 10 bar closed expansion vessel and a closed-circuit expansion vessel are added, with a service every year.

Less fluid lossFrom the solar heater's closed circuit.
A more efficient heaterAnd protection for the collectors in winter.
Port for a 2.5 bar valveA thread to connect to the cylinder.
10 years on the cylinderWith the Mastersol warranty add-ons.
Technical specifications

All the numbers, in one table.

Expansion vessel capacity1 lt
Safety valvePort for a 2.5 bar valve
Warranty & installation

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Installation

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A partner installer does the site visit, the connection and the first start-up. Ask for a quote together with the product.

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Heating study

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Questions

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What is it for?

It limits the loss of heat-transfer fluid from the solar heater's closed circuit, makes the water heater run more efficiently, lowers the risk of collector damage in winter and protects the safety valves from thermal expansion.

Where does it connect?

On the closed circuit of the solar water heater: the thread at the bottom screws into the solar heater's cylinder. On top it has a port for a 2.5 bar safety valve.

Is the safety valve included?

The vessel has a port for a 2.5 bar safety valve. Ask us about the valve.

How does it relate to the solar heater warranty?

Under Mastersol's terms, the cylinder warranty becomes 10 years, instead of 5, with the additional purchase of an overheat valve (94°C / 6 bar), a 10 bar closed expansion vessel and a closed-circuit expansion vessel, and with a service every year. The FS1 is a closed-circuit expansion vessel.

Will it fit my solar water heater?

It is for the closed circuit of a solar water heater. Tell us the model of yours and we will let you know.

How is it delivered?

Collect it from our shop in Patras, or we send it by carrier. The shipping cost shows in the cart; if it does not show for your area or size, call us for the delivery cost. A plumber fits it.

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