Gas Water Heaters

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QUADROFLEX QF series gas water heaters with capacities of 80, 120 and 150 litres, available in ZKO (chimney-vented, open combustion chamber) and SKO/ZKN (forced flue gas extraction) versions. Gas heating is an alternative to an electric water heater, especially where a gas connection is available and faster heating of a larger volume of water is required.

Frequently Asked Questions

What is the difference between ZKO and SKO/ZKN? ZKO has an open combustion chamber with flue gas extraction via a chimney, while SKO/ZKN uses forced flue gas extraction by a fan (turbo).
Do I need a chimney inspection report for installation? Yes, for the chimney version (ZKO); for extraction through a facade wall it depends on the type of installation - consult your installer.
What capacity should I choose for a family house? For a typical 4-person household, a capacity of 120 - 150 litres is usually chosen.