- Installer Resources
- Easy PVSolar design software
- HeatpunkHeat pump system design software
- PromotionsCurrent promotions
- TrainingUpcoming training events
- Technical SupportTechnical support and assistance
- Heat Pump Kit BuilderBuild a heat pump kit in seconds
- Blog and newsNews from Midsummer
- Renewable Heat
- SamsungSamsung Heat Pumps
- Riello Riello Heat Pumps
- VaillantVaillant Heat Pumps and Cylinders
- Stiebel EltronStiebel Eltron Heat Pumps
- MitsubishiMitsubishi Heat Pumps
- BoschBosch Heat Pumps
- World Heat Stainless Cylinders from World Heat
- UK CylindersStandard and slimline heat pump cylinders
- TelfordTelford Cylinders
- SunampInnovative high efficiency phase-change heat storage
- Sunamp Thermino PlusSunamps new Plus range of phase-change water storage heaters
- Samsung ClimateHubSamsung ClimateHub tanks
- IntatecInta's range of heating accessories
- HomelySmart controller for heat pumps
- ZyphoZypho heat recovery
- AccessoriesPumps, valves etc.
- External Pipe CoveringsTrunking and lagging
- * HEAT CLEARANCE *UK cylinders, Mixergy, Sunamp etc
- Solar Panels
- Meyer BurgerMeyer Burger: Swiss-made quality solar panels
- TrinaTier one panels for commercial installations
- LongiMonocrystalline solar panels with excellent value
- JinkoHigh-performance solar panels
- EurenerTop quality panels from the Spanish manufacturer
- PerlightGreat range - including the blackest panels available
- SolFiT BIPVSleek, British, building-integrated PV
- Damaged PanelsDamaged Solar Panels
- Inverters
- SungrowClean power for all
- GrowattA wide range of single and three phase inverters at outstanding prices
- SolarEdgePanel level optimisation for maximum output.
- SolaX1ph and 3ph inverters from SolaX
- HuaweiLarge three phase inverter range from Huawei
- Enphase microinvertersWorld-leading microinverters with a 25yr warranty
- Tigo optimisersOptimisers for use with any inverter.
- FroniusReliable inverters from the Austrian brand.
- SofarNew plug and play range with integrated wifi and DC.
- Solar for flats
- SolshareThe innovative Solshare unlocks solar power for flats across the UK
- Mounting
- Fastensol pitchedCost-effective and easy-to-fit system.
- Renusol pitchedHigh quality mounting systems designed in Germany
- K2 pitchedK2 mounting for pitched roofs
- GSE in-roofCost-effective in-roof mounting to suit a wide range of panels.
- K2 FlatK2 Flat Roof mounting for both south and east/west facing roofs
- Renusol flatThe famous Renusol buckets- designed in Germany
- Fastensol FlatFastensol Flat
- Van der ValkFlat roof and ground mounting systems
- GSE Ground MountGSE ground mounting
- AccessoriesA variety of helpful and handy accessories for our mounting systems.
- SolarportBespoke Ground Mounting Equipment
- Storage
- Polar ESSPolar ESS Battery Storage System
- SolarEdgeSolarEdge battery solution
- GivEnergyGivEnergy Energy Storage Systems
- SolaXHybrid inverters with battery storage.
- GrowattGrowatt range of ESS inverters
- HuaweiHuawei hybrid inverters with LUNA Lithium Ion batteires.
- MyenergiMyenergi energy storage system - the libbi
- EnphaseEnphase All-In-One IQ Batteries
- SungrowA range of Sungrow battery storage systems
- PylonSuperb value and reliable lithium-ion batteries and accessories from Pylon Technologies
- SofarAffordable AC-based storage.
- Immersion controllersA range of solar immersion controllers.
- GivEnergy CommercialA range of GivEnergy products for commercial scale projects
- EV Chargers
- ZappiEV to go with PV.
- SolarEdgeSolarEdge EV chargers
- GivEnergy EVGivEnergy EV
- Electrical
- DC Cabling & AccessoriesGood quality cable and connectors for solar wiring
- AC Cabling & AccessoriesAC cables and accessories for everything after your PV inverter
- IsolatorsWide range suitable for all the inverters we supply.
- MetersStandard and GSM-enabled kWh meters.
- MonitorsWide range of monitoring accessories for PV systems
- String fusesString fuses for larger systems.
- EnclosuresEnclosures for mounting and protection
- All the rest
- LabelsLabel sets with all required labels for PV installations.
- Miscellaneousspecial and miscellaneous items
- OffgridOffgrid items for trade customers
- * CLEARANCE *Clearance items that are end of line products
Altecnic 500ml Expansion Vessel
Accessories
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A small expansion vessel is usually required on a Sunamp installation to allow for expansion of the water contained in the heat exchanger as it is heated.
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