Worcester Bosch Company OverviewWorcester Bosch Air Source Heat Pump Range1. Compress 2000 AWF2. Compress 5800i AW3. Compress 3400i AWS4. Compress 7001i AWSummary of Worcester Bosch Compress Heat Pump RangePros and Cons of Worcester Bosch Heat PumpsCost of Worcester Bosch Air Source Heat PumpsIs a Worcester Bosch Heat Pump Suitable for You?Worcester Bosch Heat Pump Review FAQs
Worcester Bosch Company OverviewWorcester Bosch Air Source Heat Pump Range1. Compress 2000 AWF2. Compress 5800i AW3. Compress 3400i AWS4. Compress 7001i AWSummary of Worcester Bosch Compress Heat Pump RangePros and Cons of Worcester Bosch Heat PumpsCost of Worcester Bosch Air Source Heat PumpsIs a Worcester Bosch Heat Pump Suitable for You?Worcester Bosch Heat Pump Review FAQs
Air source heat pumps are quickly becoming a top choice for UK homeowners, thanks in large part to strong government support with the Boiler Upgrade Scheme and the growing awareness of their benefits like lower energy bills and a reduced carbon footprint. With grants now reaching up to £7,500, it’s no surprise you’re exploring leading brands such as Worcester Bosch in your search for the best heat pump solution.
Worcester Bosch stands out as a trusted name in the heating industry, known for its reliable, quiet and energy-efficient air source heat pumps. Their range includes models suitable for nearly every type of home, backed by positive customer feedback and a reputation for quality engineering. As you weigh your options, understanding what sets Worcester Bosch apart is key.
In this review, you’ll discover how Worcester Bosch air source heat pumps perform, their pros and cons and whether they’re the right fit for your home and budget.
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You're probably familiar with the name Worcester Bosch, especially if you’ve ever researched boilers in the UK. Founded in 1962 in Worcester, the company quickly established itself as a leading supplier of oil-fired central heating before becoming the UK’s market leader in domestic boilers.
In 1992, Worcester joined the worldwide Bosch Group, further strengthening its engineering expertise and product range. While best known for their award-winning boilers, Worcester Bosch has expanded into renewable heating solutions, including a growing line of air source heat pumps.
Their latest models, such as the Compress 7001iAW series, combine the brand’s trusted build quality with advanced, energy-efficient technology designed for the modern, low-carbon home.
Worcester Bosch’s air source heat pump range is centred around the Compress series which delivers efficient, low-carbon heating and hot water for a variety of home sizes and needs. These are all air to water heat pumps which means they extract heat from the outside air and transfer it into water, which is then circulated through your radiators, underfloor heating and hot water system. This process is highly efficient and environmentally friendly as it uses renewable energy from the air and significantly reduces reliance on fossil fuels.
The Compress series includes several models, each designed to suit different property types and requirements, while maintaining Worcester Bosch’s reputation for quiet operation, reliability and ease of installation. Below, you’ll find an overview of each heat pump in the Compress range:
A compact and efficient full monobloc air to water heat pump, the Compress 2000 AWF offers flexible outputs from 4kW up to 30kW, making it suitable for everything from small homes to larger properties It features high flow temperatures up to 65°C, simple controls and low-noise operation-ideal for both new builds and renovations.
Key Features:
✔ Features a single outdoor unit with no indoor unit required, making installation quick and straightforward.
✔ Offers a wide output range from 4kW to 30kW and can cascade up to six units, providing flexibility for different property sizes and heating demands.
✔ The all-in-one monobloc design means there’s no need for an F-Gas qualified installer, simplifying the installation process.
✔ Compact and space-saving, the unit is ideal for both new builds and renovations where space and ease of installation are priorities.
The Compress 5800i AW is known for its ultra-quiet operation and high efficiency with an A+++ energy rating for heating. It uses the environmentally friendly R290 refrigerant which means it has a low global warming potential. Its compact, space-saving design makes it a strong choice for smaller homes or properties where space is at a premium.
Key Features:
✔ Specially designed for UK homes, the Compress 5800i AW is ideal for both new builds and renovation projects.
✔ Ultra-quiet operation with an integrated diffuser ensures minimal noise, making it suitable for residential areas.
✔ The easy-install, ‘plug and play’ indoor unit features integrated components like a micro-buffer, diverter valves, pumps and a backup heater for hassle-free installation.
✔ Offers flexibility by allowing you to use third-party cylinders and components.
This split air to water heat pump is available in 4, 6, 8 and 10kW outputs which offers flexibility for different home sizes. The 3400i AWS features a pre-configured indoor unit for quick installation, a built-in backup electric booster and the option to integrate with hybrid systems.
Key Features:
✔ Small but powerful, the Compress 3400i AWS delivers strong performance while keeping your outdoor space uncluttered.
✔ Works well for both new builds and certain renovation projects.
✔ The hybrid option lets you combine a boiler and heat pump, pairing with 4-8kW outdoor units for greater flexibility in your heating system.
✔ Optional Green Storage WB Range Heat Pump cylinders, available from 150 to 300 litres, provide ample hot water for busy households.
The Compress 7001i AW is a semi-monobloc heat pump with outputs ranging from 5kW to 17kW, designed for both new builds and renovations. It boasts high efficiency (A+++ at 35°C), low maintenance requirements and the ability to provide both heating and cooling. Its robust design and wide output range make it suitable for larger or more demanding homes.
Key Features:
✔ Exceptionally quiet operation with Quiet Mark certification, making it ideal for noise-sensitive environments.
✔ The monobloc design contains all refrigeration components, including the inverter and circuit boards, resulting in low maintenance requirements.
✔ Features a pre-configured AWE indoor unit for fast and straightforward installation.
✔ Offers both heating (operating from -20°C to 35°C outdoor temperatures) and cooling (from 15°C to 45°C), providing year-round comfort and flexibility.
The table below allows you to easily compare each Worcester Bosch Compress heat pump model side by side, giving you a clear snapshot of their key differences and standout features. This quick summary helps you digest the more detailed information covered in the previous paragraphs, making it simpler to identify which model might best suit your home and heating needs:
| Model | Output Range | Type | Key Feature |
|---|---|---|---|
| Compress 2000 AWF | 4kW to 30kW | Monobloc air to water heat pump | Single outdoor unit with no indoor unit required |
| Compress 5800i AW | 4kW to 7kW | Monobloc air to water heat pump | Ultra-quiet operation with R290 refrigerant |
| Compress 3400i AWS | 4kW to 10kW | Split air to water heat pump | Hybrid-ready for combining with boilers |
| Compress 7001i AW | 5kW to 17kW | Semi-monobloc air to water heat pump | Quiet Mark certified with heating & cooling modes |
Tt’s important to weigh both the advantages and potential drawbacks of a Worcester Bosch air source heat pump when considering one for your home. These heat pumps are known for their efficiency, quiet operation and the trusted reliability of the Worcester Bosch brand which make them an attractive option.
However, like any major home investment, there are factors you should keep in mind such as the initial heat pump cost and space needs. Below, you’ll find a clear overview of the main pros and cons to help you decide if a Worcester Bosch heat pump is the right fit for your home:
High energy efficiency which could lower your energy bills and reduce your carbon footprint.
Many models operate quietly, often with Quiet Mark certification, so noise won’t be an issue even in close neighbourhoods.
You can trust the strong reputation Worcester Bosch has for reliability and customer satisfaction.
You may be eligible for government heat pump grants to help reduce the upfront installation costs.
The initial cost is generally higher than traditional heating systems, even though grants can help offset this.
If your home isn’t well insulated, the heat pump’s efficiency might decrease, potentially increasing running costs.
Some models need sufficient outdoor and indoor space which could be a challenge if you have a smaller property.
The cost of an air source heat pump can vary significantly depending on the model you choose and your specific requirements. Factors that influence the price include the size and output of the heat pump, the type of system, the complexity of the installation and the condition or insulation level of your property.
For example, you might pay around £3,000 for a Compress 2000 AWF unit, while a larger, higher-output model like the 7001iAW 17kW could cost you close to £6,000 (it's important to note that these figures are for the units themselves and do not include installation or additional components which can add to the total cost). Installation expenses, property size and any necessary upgrades to your heating system will all impact the final price you pay.
We recommend speaking to a qualified air source heat pump installer to get an accurate estimate of how much you'll pay for the total installation cost.
Deciding if a Worcester Bosch heat pump is suitable for you starts with understanding your home’s size and your specific heating needs. Worcester Bosch offers a range of air to water heat pumps with outputs from 4kW to 30kW, so whether you live in a small flat or a large family home, you’ll likely find a model that matches your requirements.
It’s also important to note that Worcester Bosch focuses solely on air to water heat pumps, so if you're looking for air to air heat pumps for example, Worcester Bosch is not right for you. However, if you're looking to upgrade your current boiler system with an air to water system that integrates easily with radiators or underfloor heating, Worcester Bosch may be a great option for you.
You should also consider other factors such as the level of insulation in your home, the condition of your radiators and the available space for installation as these can all affect the performance and efficiency of your chosen heat pump.
Since many factors affect which air source heat pump will work best for you, it’s wise to get a professional assessment from a qualified installer, such as Glow Green - we can evaluate your property and recommend the most effective solution for your needs.
Worcester Bosch specialises in air to water heat pumps which provide both heating and hot water for your home by transferring heat from the outside air into your central heating system.
Most Worcester Bosch air source heat pumps achieve high energy efficiency ratings, often A+++ when operating at lower flow temperatures. This means they can deliver significantly more heat energy than the electricity they consume which results in lower energy bills and reduced carbon emissions.
Yes, Worcester Bosch air source heat pumps are designed to operate efficiently even in colder UK climates. However, their performance can be affected by extremely low temperatures and the insulation quality of your home.
Worcester Bosch heat pumps come with a standard 2 year warranty with options to extend the cover in some cases. Extended warranties may add to the overall cost.
Yes, Worcester Bosch air source heat pumps are generally considered worth it due to their high efficiency, reliability and ability to reduce your energy bills and carbon footprint. However, it’s always a good idea to consult with a qualified heat pump installer to ensure you choose the model that best fits your home and specific needs.
