{"id":105644,"date":"2026-09-01T15:56:24","date_gmt":"2026-09-01T15:56:24","guid":{"rendered":"https:\/\/www.seltron.si\/?p=105644"},"modified":"2026-10-01T16:11:58","modified_gmt":"2026-10-01T16:11:58","slug":"300-l-heat-pump-for-sanitary-water","status":"publish","type":"post","link":"https:\/\/www.seltron.si\/en\/toplotna-crpalka-za-sanitarno-vodo-300-l\/","title":{"rendered":"Heat pump for sanitary water 300 l: how to choose the right one and how much does it cost?"},"content":{"rendered":"
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Heat pump for sanitary water 300 l: how to choose the right one and how much does it cost?\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The 300-liter hot water heat pump is an interesting solution for households that use a lot of hot water and want to reduce the cost of heating it. The 300-liter volume is suitable primarily for larger households; when choosing, it is not only the size of the storage tank that matters. The efficiency and final cost are also influenced by the heat pump\u2019s efficiency, the method of extracting heat from the air, the possibilities of connecting to other energy sources, the quality of insulation, and the method of use.<\/b><\/p>

If you are looking for <\/span>a heat pump for sanitary water 300 l<\/b>, Therefore, before purchasing, it is worth checking more than just the price of the device.\u00a0<\/span><\/p>

In short:<\/i><\/b> A 300-liter sanitary heat pump is particularly suitable for households with high water consumption. When choosing, check primarily the energy efficiency, the way the tank is filled, the possibility of connecting an additional energy source, management, and the ability to connect to a solar power plant.<\/span><\/i><\/p>

What is the 300 l sanitary hot water heat pump?<\/b><\/h2>

A sanitary heat pump is a device designed to produce hot sanitary water. Unlike a conventional electric heater that directly heats the water with an electric heater, a heat pump uses the heat from the surrounding air for its operation.<\/span><\/p>

Electric energy is needed primarily for the operation of the compressor, fan and controls. The heat pump thus enables the use of less electricity to produce the same amount of hot water than with direct electric heating.<\/span><\/p>

When performing with <\/span>300-liter storage container<\/b> The heat is stored in a larger amount of sanitary water, which is available to the user when they need it. This is especially important in households where a large amount of water is consumed in a short time, for example in the morning or evening.<\/span><\/p>

How many people is a 300 l sanitary hot water heat pump suitable for?<\/b><\/h2>

There is no rule that applies when choosing a volume; a larger storage container is always better. What matters is that its size is adapted to the actual consumption of hot water \u2013 for orientation, approximately <\/span>50 to 80 liters of warm sanitary water per person per day<\/b>.\u00a0<\/span><\/p>

For a four-member family, a sanitary heat pump with a volume of up to 300 liters is suitable.\u00a0<\/span><\/p>

Number of persons<\/b><\/p><\/td>

Framework selection<\/b><\/p><\/td>

When is a larger volume meaningful?<\/b><\/p><\/td><\/tr>

1\u20132 people<\/span><\/p><\/td>

smaller storage container<\/span><\/p><\/td>

with excessive consumption or frequent use of large amounts of water<\/span><\/p><\/td><\/tr>

3\u20134 people<\/span><\/p><\/td>

200\u2013300 l<\/span><\/p><\/td>

if the consumption is higher or there are more users at the same time<\/span><\/p><\/td><\/tr>

4\u20136 people<\/span><\/p><\/td>

300 l or more<\/span><\/p><\/td>

with higher daily consumption and more consecutive withdrawals<\/span><\/p><\/td><\/tr><\/tbody><\/table>

In this case, the habits of the users must also be taken into account. A family that consumes a lot of water for showering, bathing, or other needs will need a larger reserve than a household with the same number of members, but with a lower consumption.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Why choose a 300-liter sanitary heat pump?<\/b><\/h2>

The main advantage of the 300-liter model is the greater available volume of hot water. This reduces the possibility of running out of ready-made sanitary water during multiple consecutive uses.<\/span><\/p>

When choosing, it is not enough to just look at the volume. It is also important how efficiently the system uses the available heat and how it manages the water supply.<\/span><\/p>

Greater supply of hot water<\/b><\/h3>

300 liters represents a considerable supply of ready-made sanitary water. This is an advantage especially for households with several members, where the need for hot water can arise almost simultaneously.<\/span><\/p>

Lower electricity consumption<\/b><\/h3>

The heat pump extracts heat from the ambient air, so it does not use electricity in the same way as a conventional electric heater. An important fact to consider when comparing the devices is therefore <\/span>COP<\/b>, which relates the ratio between the heat obtained and the electrical energy consumed under certain measurement conditions.<\/span><\/p>

More possibilities for using renewable energy<\/b><\/h3>

If the sanitary heat pump is connected to a solar power plant, the preparation of sanitary water can be adapted to the availability of electricity from the photovoltaic system. The SELTRON SAN device has a function designed for this. <\/span>PV<\/b>.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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How does a heat pump for domestic hot water work?<\/b><\/h2>

The operation of the sanitary heat pump is based on a cooling circuit. The device extracts heat from the surrounding air and transfers it to the sanitary water using a coolant and a compressor.<\/span><\/p>

  1. Extraction of heat from the air:<\/b> The fan directs the air through the evaporator, from which heat is extracted.<\/span><\/li>
  2. Coolant pairing:<\/b> The coolant takes the heat from the air and converts it into a gaseous state.<\/span><\/li>
  3. Compression:<\/b> The compressor increases the pressure and temperature of the coolant.<\/span><\/li>
  4. The transfer of heat leads to:<\/b> The coolant transfers heat to the water in the reservoir.<\/span><\/li>
  5. Repetition of the cycle:<\/b> After the pressure is reduced, the coolant returns to the heat removal process.<\/span><\/li><\/ol>

    The key to efficiency is therefore that the device does not generate all the heat directly from electricity, but transfers a large part of it from the surroundings.<\/span><\/p>

    SELTRON SAN 300: what does the 300-liter sanitary heat pump offer?<\/b><\/h2>

    SELTRON SAN<\/b><\/a> is a sanitary heat pump designed for efficient preparation of sanitary water. The model with a volume of 300 liters is designed for households with a higher need for hot water.<\/span><\/p>

    One of the important features of the device is <\/span>COP 3.7<\/b>, Which makes the SAN one of the most efficient sanitary heat pumps available on the market. The device falls into the <\/span>energy class A+<\/b>.\u00a0<\/span><\/p>

    Capillary exchanger for efficient heat transfer<\/b><\/h3>

    SELTRON SAN has a patented capillary heat exchanger with a large contact surface with a heat-water reservoir. The larger contact surface enables efficient heat transfer and is one of the elements that contribute to the efficient operation of the device.\u00a0<\/span><\/p>

    Up to 20 % more available hot water with stratification<\/b><\/h3>

    One of the special features of the SELTRON SAN device is the stratification system. Cold water does not mix the entire stock of already heated water upon arrival, but is directed into the storage tank.<\/span><\/p>

    Such a charging method allows up to <\/span>20 % more available hot sanitary water<\/b> at the desired temperature. At the same time, it can reduce the number of on and off cycles of the heat pump.\u00a0<\/span><\/p>

    Possibility of using an additional source of energy<\/b><\/h3>

    The SELTRON SAN has an integrated additional heat exchanger, which means that sanitary water can also be heated using another source, such as a boiler or a solar system. This allows for greater flexibility in using the existing heating system.\u00a0<\/span><\/p>

    Electric heater for additional heating<\/b><\/h3>

    The built-in electric heater with a power of 1.5 kW allows for the heating of sanitary water in case of increased current needs or when the compressor is not working.<\/span><\/p>

    Touch control<\/b><\/h3>

    The operation of the device can be controlled via an illuminated, touch-sensitive user interface. This makes setting and monitoring the operation easier.\u00a0<\/span><\/p>

    Heat pump for sanitary water 300 l price \u2013 how much does it cost?<\/b><\/h2>

    Question <\/span>\u00bbheat pump for sanitary water 300 l price\u00ab<\/b> It is one of the most common problems when searching for a suitable device. It is important to distinguish between the price of the device itself and the final investment.<\/span><\/p>

    The price of a sanitary heat pump depends on several factors:<\/span><\/p>