ThermoSphere Flex 14kW Electric Combi Boiler TSFLEX14
- SKU
- EDDTSFLEX14
Our Expert's Opinion
"A smart fix for flats with no gas or flue. Check the supply can take a 63A circuit first, and remember it is a shower boiler, not a bath-filler."ThermoSphere Flex 14kW Electric Combi Boiler
For a flat or a small property off the gas grid — or anywhere a flue simply is not possible — the ThermoSphere Flex gives you central heating and instant hot water from one wall-mounted box, with no gas, no flue, and no cylinder.
It is pre-wired and pre-plumbed, with the pump and a 5 litre expansion vessel built in, and measures just 585 x 380 x 235mm, so it fits in a kitchen wall cupboard space.
Set to the property, not the other way round
Heating output is digitally adjustable from 4kW to 14kW, and hot water output separately from 10kW to 14kW. Set the heating to the calculated heat loss of the property and the hot water to suit the outlets. It runs radiators, wet underfloor heating, and skirting heating, at flow temperatures from 30°C to 80°C.
Hot water: what to expect
An electric combi heats water as it flows, so the flow rate is the honest limit. The Flex delivers around 6 litres per minute at 14kW with a 30°C temperature rise. That suits a single shower or basins well, but it is not designed for filling a bath. Set hot water to at least 12kW where there is a shower; 10kW is enough for basins only. ThermoSphere recommend a 5 l/min flow restrictor, which is in the installation kit.
Electrical supply — check this first
At 14kW on a single-phase supply, the Flex needs a 63A MCB and 10mm² cable. Before ordering, have an electrician confirm the incoming supply and consumer unit can take that load alongside everything else in the property. It is the one question that decides whether an electric combi is right for the job.
Controls and warranty
A digital timer and thermostat for heating and hot water are built in, with volt-free terminals for an external programmer or room thermostat. The standard warranty is 5 years, extended to 7 years when it is fitted with the ThermoSphere installation kit and registered online within 30 days of commissioning.
Not sure the supply will take it, or whether a combi or a system boiler and cylinder is the better fit? Call our team on 01934 253600.
Specification
| Product code | TSFLEX14 |
| Heating output | 4 – 14kW, digitally adjustable |
| Hot water output | 10 – 14kW, digitally adjustable |
| Hot water flow rate | 6 l/min at 14kW, 30°C rise |
| Supply | 230V single phase 50Hz |
| Recommended MCB | 63A |
| Supply cable | 10mm² |
| Flow temperature | 30 – 80°C |
| Expansion vessel | 5 litres, integrated |
| Pump | Integrated |
| Max system pressure | 1.5 bar |
| Dimensions (H x W x D) | 585 x 380 x 235mm |
| Protection rating | IPX1 |
| Flue / gas | None required |
| Warranty | 5 years (7 years with installation kit and registration) |
| EAN | 5056257308753 |
| MPN | TSFLEX14 |
|---|---|
| Product Code | EDDTSFLEX14 |
| Height (mm) | 585 |
| Width (mm) | 380 |
| Depth (mm) | 235 |
| Power (Watts) | 14 |
| Heater Type | Combi Boiler |
| Warranty (years) | 5 |
| Brand | ThermoSphere |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
ThermoSphere Flex 14kW Electric Combi Boiler
For a flat or a small property off the gas grid — or anywhere a flue simply is not possible — the ThermoSphere Flex gives you central heating and instant hot water from one wall-mounted box, with no gas, no flue, and no cylinder.
It is pre-wired and pre-plumbed, with the pump and a 5 litre expansion vessel built in, and measures just 585 x 380 x 235mm, so it fits in a kitchen wall cupboard space.
Set to the property, not the other way round
Heating output is digitally adjustable from 4kW to 14kW, and hot water output separately from 10kW to 14kW. Set the heating to the calculated heat loss of the property and the hot water to suit the outlets. It runs radiators, wet underfloor heating, and skirting heating, at flow temperatures from 30°C to 80°C.
Hot water: what to expect
An electric combi heats water as it flows, so the flow rate is the honest limit. The Flex delivers around 6 litres per minute at 14kW with a 30°C temperature rise. That suits a single shower or basins well, but it is not designed for filling a bath. Set hot water to at least 12kW where there is a shower; 10kW is enough for basins only. ThermoSphere recommend a 5 l/min flow restrictor, which is in the installation kit.
Electrical supply — check this first
At 14kW on a single-phase supply, the Flex needs a 63A MCB and 10mm² cable. Before ordering, have an electrician confirm the incoming supply and consumer unit can take that load alongside everything else in the property. It is the one question that decides whether an electric combi is right for the job.
Controls and warranty
A digital timer and thermostat for heating and hot water are built in, with volt-free terminals for an external programmer or room thermostat. The standard warranty is 5 years, extended to 7 years when it is fitted with the ThermoSphere installation kit and registered online within 30 days of commissioning.
Not sure the supply will take it, or whether a combi or a system boiler and cylinder is the better fit? Call our team on 01934 253600.
Specification
| Product code | TSFLEX14 |
| Heating output | 4 – 14kW, digitally adjustable |
| Hot water output | 10 – 14kW, digitally adjustable |
| Hot water flow rate | 6 l/min at 14kW, 30°C rise |
| Supply | 230V single phase 50Hz |
| Recommended MCB | 63A |
| Supply cable | 10mm² |
| Flow temperature | 30 – 80°C |
| Expansion vessel | 5 litres, integrated |
| Pump | Integrated |
| Max system pressure | 1.5 bar |
| Dimensions (H x W x D) | 585 x 380 x 235mm |
| Protection rating | IPX1 |
| Flue / gas | None required |
| Warranty | 5 years (7 years with installation kit and registration) |
| EAN | 5056257308753 |
| MPN | TSFLEX14 |
|---|---|
| Product Code | EDDTSFLEX14 |
| Height (mm) | 585 |
| Width (mm) | 380 |
| Depth (mm) | 235 |
| Power (Watts) | 14 |
| Heater Type | Combi Boiler |
| Warranty (years) | 5 |
| Brand | ThermoSphere |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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- Height (mm)
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