Baxi
The Baxi HP40 is a UK-manufactured air-source heat pump. It offers a 2-year standard warranty, extendable to 5 years with annual servicing and magnetic filter installation.
The Baxi HP40 is an air-source heat pump designed for domestic heating applications in the UK. This page compiles available technical specifications, warranty information, and frequently asked questions relevant to the HP40 model. Intended for UK gas and heating engineers, this resource provides a reference for understanding the appliance's characteristics and installation considerations. Homeowners researching the Baxi HP40 may also find this content informative for general product understanding.
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Full technical specifications extracted from the manufacturer brochure. Empty sections are hidden.
Requires magnetic filter installation, correct commissioning, Benchmark checklist completion, warranty registration within 30 days, and annual servicing within 60 days of commissioning anniversary. Non-compliance reverts warranty to 2 years. Damage caused by sludge is not covered.
The Baxi HP40 is identified as an air-source heat pump, with its manufacturing origin noted as the UK. This appliance is positioned for domestic heating applications, as suggested by the available quick start guide documentation. The guide serves primarily as an initial reference for homeowners, outlining basic operational aspects rather than comprehensive technical specifications.
For product assurance, the Baxi HP40 is offered with a standard warranty period of 2 years. This can be extended to 5 years, contingent on specific conditions detailed by the manufacturer. These conditions typically mandate the installation of a magnetic filter, correct system commissioning, completion of the Benchmark checklist, warranty registration within 30 days of installation, and adherence to an annual servicing schedule. Annual services must be conducted within 60 days of the commissioning anniversary. Non-compliance with these stipulations may result in the warranty reverting to the standard 2-year term. It is explicitly stated that damage resulting from sludge within the heating system is not covered under the warranty, highlighting the critical role of system cleanliness and preventative measures.
Maintenance guidelines for the Baxi HP40 specify a service interval of 12 months. Regular professional servicing is essential for sustaining operational efficiency and ensuring the validity of the extended warranty. The quick start guide underscores the importance of preventing sludge build-up, which is described as corrosion forming black iron-oxide debris. Such accumulation can lead to damage to the heat pump, radiators, radiator valves, and blockages in central heating pipework. Consequently, the integration of a magnetic filter is recommended to capture magnetic debris in the system water, thereby protecting the appliance from these issues.
While detailed performance metrics, such as nominal capacity, Coefficient of Performance (COP), Seasonal Coefficient of Performance (SCOP), refrigerant type, sound power levels, or precise physical dimensions, are not provided within the scope of the quick start guide, the Baxi HP40 is presented as a UK-manufactured air-source unit. For comprehensive technical data, including specific operational parameters, electrical requirements, and hydraulic characteristics, heating engineers are advised to consult the full installation manual or dedicated technical datasheets. This page synthesises information directly from the provided homeowner quick start documentation, which outlines key aspects of ownership and basic maintenance rather than exhaustive engineering specifications.
Common questions from engineers and homeowners about the Baxi HP40.
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Specifications on this page are extracted from the manufacturer brochure. Always cross-check against the latest datasheet before commissioning or quoting. Last updated 30 April 2026.