What is the difference between a monobloc and a split heat pump?

Author: Polly

May. 27, 2024

Split Vs Monobloc Heat Pumps - What's The Difference?

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Air to water heat pumps offer an eco-friendly heating solution for our homes. By converting the energy from outside air into usable heat, these systems can reduce heating bills by up to 60% and decrease CO2 emissions by 50%. More insights on this innovative heating method can be found in our previous article on how does an air to water heat pump work.

Heat pumps primarily come in two types: "split heat pumps" and "monobloc heat pumps." There is often confusion regarding the differences between these two. To clarify, we've created this concise guide outlining their main distinctions and which type might be best suited for your home.

What is a monobloc heat pump?

A monobloc heat pump is a single-unit system installed outside the home. This outdoor unit contains the compressor, heat exchanger, and water side of the refrigeration cycle.

What is a split heat pump?

Unlike a monobloc heat pump, a split heat pump consists of multiple units. A condenser collects heat from the air and sends the heated gas to an indoor unit within the home. This indoor unit uses the transported heat to warm the water, and it also houses the hot water cylinder.

So, what's the difference?

The primary difference between split and monobloc heat pumps lies in their setup and the number of units required. A monobloc heat pump necessitates only a single outdoor unit, whereas a split system requires both indoor and outdoor units. A monobloc heat pump heats the water outside, while a split system keeps the heated water inside the house.

Which is better for my home?

The choice between a split and monobloc heat pump depends on your property's specific requirements. Monobloc heat pumps are typically cheaper to purchase and easier to install. However, they are costlier to run since they need to work harder to heat the water outside and transport it indoors. On the other hand, split units are more economical to run as they heat the water within the house, and their outdoor units are usually smaller and quieter. However, the installation process for split systems tends to be more complex.

Ultimately, deciding between a split or monobloc heat pump depends on your budget, space, and property layout. Our expert team at Pipelife is always available to help you choose the best option for your home.

Split & Monobloc Heat Pumps at Pipelife Eco

We offer both split and monobloc heat pumps to meet individual homeowner requirements. OUTES products are renowned globally for their quality and innovation. Our mission is to provide more and better high-value-added products. Let's work together for a brighter future.

Hitachi Yutaki-S Split Combi Heat Pump

The Yutaki S heat pump features an exterior inverter unit connected to an internal hydraulic unit. In heating mode, the exterior unit absorbs heat from outside, even at temperatures as low as -20°C, and transfers it to the water cycle via the interior hydraulic unit.

This air-to-water heat pump also offers a cooling mode for summertime use, capable of drawing heat outwards. It effectively produces hot or cold water for radiators, fan coil units, underfloor heating, or a combination of these. When connected to a tank, it can also provide domestic hot water.

Midea M Thermal Mono-Bloc Heat Pump

Providing heating, cooling, and domestic hot water, the M Thermal heat pump is a comprehensive, year-round solution. The compact, single outdoor unit connects to the indoor heating system via two insulated pipes and underground electronic connection cables.

Available in single-phase capacities from 4KW to 16KW and three-phase capacities from 12KW to 30KW, the M Thermal heat pump is an efficient and hassle-free way to heat your home.

For more details on any of our air-to-water heat pumps or to request a quote, please don't hesitate to contact us.

Heat Pumps: Monobloc or Split?

Before diving into the different designs, let's briefly explain how a heat pump works. Regardless of the type, heat pumps are efficient heating systems that extract free environmental heat using a small amount of electricity.

A heat pump operates like an inverted refrigerator, extracting thermal energy from the surrounding environment and directing it to the building's heating system. This energy can be used for domestic hot water (DHW) heating and/or as a backup for central heating. In residential settings, the primary energy sources include ambient air, groundwater, and geothermal heat.

Given the higher initial investment for water-to-water and brine-to-water heat pumps (also known as geothermal heat pumps), many building owners prefer air-to-water heat pumps. They offer several advantages, especially in terms of flexible installation, making them an attractive option when renovating existing buildings.

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