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Comparison Gorenje TGR 30 SNGV9 vs Gorenje TGR 30 SV9

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Gorenje TGR 30 SNGV9
Gorenje TGR 30 SV9
Gorenje TGR 30 SNGV9Gorenje TGR 30 SV9
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Typestoragestorage
Energy sourcemainsmains
Installationverticalvertical
Tank volume30 L30 L
Tank shapecylindricalcylindrical
Technical specs
Power source230 V230 V
Power consumption2000 W2000 W
Max. water temperature75 °C
Tank liningenamelenamel
Water supplywith pressurewith pressure
Heating time59 min
65 min /Δ60°С/
Magnesium anode
Heating elements11
Heating element type
wet heater
wet heater
Features
Functions
thermostat
thermostat
Safety systems
overheat protection
frost protection
safety valve
overheat protection
frost protection
safety valve
General specs
Controlsmechanicalmechanical
Controls layoutbottombottom
Pipe connectionbottombottom
Tank manufacturer's warranty7 years
Dimensions (HxWxD)
61.5x33.4x33.4 cm /weight — 20 kg/
61.5x33.4x35.4 cm /weight — 20 kg/
Added to E-Catalogfebruary 2018june 2014

Max. water temperature

The highest water temperature provided by the device. The standard temperature of hot water in the water supply is 60 °C, and this value is actually the minimum for modern water heaters: models with more modest rates (usually from 40 °C) are extremely rare. But higher values can be found much more often: for example, water heaters of 75 °C and 80 °C are very popular, and in the most powerful models in this regard, the temperature can reach 95 °C and even higher.

On the one hand, strong heating requires appropriate power (which is especially noticeable in the case of instant electric heaters). On the other hand, the higher the temperature of hot water, the less it is needed for a comfortable outlet temperature, after mixing with cold water; this reduces the consumption of heated water, which is especially important for storage boilers. In addition, many models have thermostats (see "Features").

Also, note that heating to operating values may involve different ΔT (degree of temperature change) — depending on the initial temperature of the cold water. The actual performance of the heater directly depends on ΔT; this moment is described in more detail below, in the paragraphs devoted to performance at different ΔT.

Heating time

Time to heat the storage tank (see "Type"), filled with cold water, to operating temperature.

It is worth remembering that this characteristic is not 100% accurate. Manufacturers usually indicate the heating time for certain conditions: a filled tank, maximum heating intensity, and temperature rise (∆T) by a certain number of degrees. In practice, the heating time may differ, both one way and the other. For example, if the heating time for the device is 20 minutes at ∆T = 50 °C, then when the water is heated from 15 °C to 60 °C, the time will be shorter (∆T = 45 °C). Nevertheless, this indicator allows us to evaluate the overall flow rate of the boiler, and with equal ∆T and volumes, different models can be compared in terms of heating time.

Tank manufacturer's warranty

The warranty period declared by the manufacturer for the storage water heater tank (see “Type”).

This parameter is important for the reasons of maintenance terms. The tank is the most complex element: other parts of the water heater are relatively easy to repair and change, and if there is a problem with the tank, it is often easier to replace the entire boiler. In the most advanced models, the warranty on the tank can be 10 years or more.