Our range of accessories are designed to work with Baxi Air Source Heat Pumps heat pumps to help enhance the performance, efficiency and functionality of heating and hot water systems.

Our Solutions
Air Source Heat Pump Accessories

ASHP solutions built around you, backed by us
Our comprehensive range of Air Source Heat Pump solutions fits the needs of every project – and with expert support always on hand, you can trust us to deliver. When it comes to ASHPs, we’ve got the lot.
Our Solutions

Heat Pumps
Baxi 24 ltr Buffer Tank
Purpose designed for use with our range of air source heat pumps, the A rated Baxi 24 Litre Buffer Vessel provides an efficient method for storing hot water that can be used to supply the system without activating the heat pump.
Easy to install the inclusion of the Baxi 24 Litre Buffer vessel can help improve the overall seasonal efficiency of a heat pump system.
ASHP Accessories HP40 & HP50
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ASHP Controller and Cylinder
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7890025 | Baxi ASHP Control | ❗ | ✖ | A HMI is already provided with the HP40 and HP50, however you can choose to use this more advance controller.More details can be find in section controllers |
7837416 | Baxi ASHP Cylinder 210L | ✔ | ✖ | 2m2 coilStandard Installation Kit includes External Expansion Vessel, Cold Control Pack and Contactor Box - for more details please consult the product manual |
7837491 | Baxi ASHP Cylinder 250L | ✔ | ✖ | 3m2 coilStandard Installation Kit includes External Expansion Vessel, Cold Control Pack and Contactor Box - for more details please consult the product manual |
7837562 | Baxi ASHP Cylinder 300L | ✔ | ✖ | 3m2 coilStandard Installation Kit includes External Expansion Vessel, Cold Control Pack and Contactor Box - for more details please consult the product manual |
7853985 | Baxi ASHP Pre-plumbed Cylinder 170L | ✖ | ✔ | 2m2 coil.Standard Installation Kit includes : External Expansion Vessel, Primary Flow Connection Kit, Mains Water Connection Kit and PRV Connection Kit - for more details please consult the product manual |
7853986 | Baxi ASHP Pre-plumbed Cylinder 210L | ✖ | ✔ | 2m2 coil.Standard Installation Kit includes : External Expansion Vessel, Primary Flow Connection Kit, Mains Water Connection Kit and PRV Connection Kit - for more details please consult the product manual |
7853987 | Baxi ASHP Pre-plumbed Cylinder 250L | ✖ | ✔ | 3m2 coil.Standard Installation Kit includes : External Expansion Vessel, Primary Flow Connection Kit, Mains Water Connection Kit and PRV Connection Kit - for more details please consult the product manual |
7853988 | Baxi ASHP Pre-plumbed Cylinder 300L | ✖ | ✔ | 3m2 coil.Standard Installation Kit includes : External Expansion Vessel, Primary Flow Connection Kit, Mains Water Connection Kit and PRV Connection Kit - for more details please consult the product manual |
Outside Installation
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7816801 | Rubber Support For ODU 600mm (3 Pack) | ✔ | ✔ | Dimension: 600Lx170W,100H mm eachPerfect if you would like noise reduction, and to elevate your ASHP to protect your unit from accumulation of snow when unit placed on the floor |
100001369 | HOSES 1 HEAT PUMP | ✔ | ✔ | 870mm pre-insulated, flexible hoses. Will fit 4 to 6kWs |
TBC | HOSES 11/4 HEAT PUMP | ✔ | ✔ | 870mm pre-insulated, flexible hoses. Will fit 7kWs and larger outputs |
7902049 | 1 Antifrost Caleffi valve kit | ✔ | ✔ | Frost protection valve 1. Set consists of 2 pieces. Will fit 4 to 6kWs.If you do not use those, please make sure you use glycol in your system. |
7902050 | 1 1/4 Antifrost Caleffi valve kit | ✔ | ✔ | Frost protection valve 1 1/4. Set consists of 2 pieces. Will fit 7kWs and larger outputs.If you do not use those, please make sure you use glycol in your system. |
Hydronic Accessories
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7879380 | 2nd Zone Accessory Kit | ✖ | ✔ | For the Baxi ASHP Pre-plumbed CylinderEnables control of Central Heating across 2 zones, includes 1 x UPM3 Auto 25-70 Pump and 2 x 28mm Pump Union Valves |
7859015 | Temperature Probe Extension 20m | ✔ | ✖ | For 1st fix or as an extension of the temperature probe between a standard ASHP cylinder and the HP40 & HP50. |
100000030 | Sensor DHW and TAS AD212 | ❗ | ✖ | This is included with the Baxi ASHP Control - If need for first fix the DHW sensor, please order this item: 5m length Sensor + connector to our PCB. |
7902049 | 1 Antifrost Caleffi valve kit | ✔ | ✔ | Frost protection valve 1. Set consists of 2 pieces. Will fit 4 to 6kWs.If you do not use those, please make sure you use glycol in your system. |
7851676 | Baxi 24L Buffer Tank | ✔ | ✔ | This is to ensure proper compressor and defrost operations with an hydronic pressure break. System volume needs to be calculated. Typically used with 4 to 6kW. |
7768655 | 40L Buffer Tank | ✔ | ✔ | This is to ensure proper compressor and defrost operations with an hydronic pressure break. System volume needs to be calculated. Typically used with 8kWs and more ASHP. |
7746242 | Differential valve | ✔ | ✔ | G¾” male. Used when you are over pressurising your heating system, this will allow your water to circulate - this is to protect the ASHP by by-passing the heating circuit. |
100020167 | Hydraulic Module 1direct circuit | ✔ | ✔ | Distribute the heating system in 1 circuit |
100020168 | Hydraulic Module 1 direct circuit + Pump | ✔ | ✔ | Distribute the heating system in 1 circuit with a pump when needs better water circulation - can check the temperature flow and return |
7616233 | Hydraulic Module 1 direct + 1 mixed circuit | ✔ | ✔ | Hydraulic module consisting of a direct central heating circuit with pump and a mixed one central heating circuit with motorized mixer and pump.2 pumps, with 3 way valves, and a collector for 2 circuits |
100020164 | Collector for 2 or 3 circuits | ✔ | ✔ | To distribute water to two to three circuits.You might want to use some wall brackets below. |
7854127 | Open distributor (6 connections). | ✔ | ✔ | To distribute water to six circuits |
100020165 | Wall brackets for collectors | ✔ | ✔ | Need to be ordered with 3661238575035 for complete set. |
100020166 | Wall brackets for collectors | ✔ | ✔ | Need to be ordered with 3661238575028 for complete set. |
Connectivity Accessories
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7814703 | GTW-IOT - Gateway Wi-Fi | ✔ | ✔ | Plug in box to have access to the commissioning Wizard App: Baxi START, as well as having your ASHP remote connectivity ready. It also allow the end user to have access to their My Baxi App to remotely monitor their heating system. Works with the Baxi ASHP Control and the Baxi Pre-Plumbed Cylinder. |
7745928 | GTW-35 | ❗ | ✔ | Tool to access the commissioning Wizard App: Baxi START for ASHP with the ASHP Control as well as the Baxi Boilers. Can be re-used for all Baxi jobs. |
7902049 | 1 Antifrost Caleffi valve kit | ✔ | ✔ | Frost protection valve 1. Set consists of 2 pieces. Will fit 4 to 6kWs.If you do not use those, please make sure you use glycol in your system. |
7851676 | Baxi 24L Buffer Tank | ✔ | ✔ | This is to ensure proper compressor and defrost operations with an hydronic pressure break. System volume needs to be calculated. Typically used with 4 to 6kW. |
7842667 | Pulse-meter kit | ✔ | ✔ | This is for high accuracy energy monitoring when used with the Baxi ASHP Control |
7808411 | Kit solar | ✔ | ✔ | For solar thermal integration in DHW tank |
7684175 | SET VALVE REVERSAL EH812 | 3 way valves - inversion valves between DHW or heating | ||
100020168 | Hydraulic Module 1 direct circuit + Pump | ✔ | ✔ | Distribute the heating system in 1 circuit with a pump when needs better water circulation - can check the temperature flow and return |
7616233 | Hydraulic Module 1 direct + 1 mixed circuit | ✔ | ✔ | Hydraulic module consisting of a direct central heating circuit with pump and a mixed one central heating circuit with motorized mixer and pump.2 pumps, with 3 way valves, and a collector for 2 circuits |
###### | HYGRO SENSOR KIT FOR COOLING | To prevent condensation in colling mode for underfloor - on/off | ||
7622433 | Set humidity sensor 0-10V HZ64 | To prevent condensation in colling mode for underfloor - 0-10V |
Back up heaters
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7708345 | SET BACKUP ELEC CONNECT EH904 | ✔ | ✖ | Must be used if you do not use an electrical back up system - Manage Immersion heater on the electrical back up water tank.Can also be used when offering 2 zones with valves only. |
7755564 | Electrical Back Up Heater 3kW | ✔ | ✖ | |
7755565 | Electrical Back-Up Heater 4.5k | ✔ | ✖ |
Thermostats
Product code | Product name | ASHP + controller +ASHP cylinder | ASHP + Pre-plumbedand Pre-wired cylinder | Comments |
---|---|---|---|---|
7890713 | Baxi RF Thermostat (Twin Channel) | ✔ | ✔ | This is a 2 zone control pack consisting of a wireless programmer and room thermostat. |
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