Original: $3,198.17
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$1,119.36The Story
The EHC Comet PV 14.4kW Electric Boiler & 200L Direct Cylinder Package (EHCEPV14.4/200) pairs a multi-output electric system boiler, field-configurable across 7.2 / 9.6 / 12.0 / 14.4kW, with a 200-litre Neptune Direct Unvented Stainless Steel Cylinder. Unlike an indirect cylinder, the Direct cylinder is heated purely by its own twin 3kW immersion elements, so the boiler is dedicated entirely to space heating — a straightforward configuration for properties with lower hot water demand or where heating and hot water are intentionally kept independent.
Qualified Installation Required
This boiler must be installed, commissioned, and electrically connected by a qualified electrician in accordance with BS7671. The unvented cylinder is a controlled service under Building Regulation G3 (England & Wales), Technical Standard P3 (Scotland), or Building Regulation Part F (Northern Ireland) and must only be fitted by a competent, G3-qualified installer. A magnetic filter must be fitted to the boiler — failure to do so will invalidate the manufacturer's warranty.
Boiler Dedicated to Space Heating
Because the Direct cylinder heats independently via its own immersion elements, the Comet PV boiler in this package can be commissioned for heating only, simplifying control wiring where a separate, self-contained hot water solution is preferred. The boiler retains its full feature set — Solar PV integration, weather compensation, and optional Smart App control via the C.MI2 Internet Module — for the heating circuit.
Direct Cylinder Has No Faster-Reheat Coil
Unlike the equivalent Indirect (200IND) package, this Direct cylinder has no internal coil connected to the boiler's primary circuit — all hot water is generated by the two 3kW immersion elements. Recovery time will be slower than an Indirect cylinder of the same capacity. Where a property has high or frequent hot water demand, consider the Indirect (EHCEPV14.4/200IND) or Pre-Plumbed Indirect (EHCEPV14.4/200PPC) packages instead.
Field-Configurable Output
A single boiler chassis covers 7.2, 9.6, 12.0, or 14.4kW via an on-board DIP switch, so installers can right-size the heat output to the building's calculated heat loss without stocking multiple boiler models.
Simple, Self-Contained Hot Water
With hot water generated entirely by the cylinder's own immersion elements, the system requires no primary coil plumbing between boiler and cylinder, simplifying pipework for heating-only boiler installations.
Weather Compensation
An outdoor temperature sensor (Tos) lets the boiler's controller adjust flow temperature to a selectable heating curve, reducing energy use during milder weather while maintaining comfort during cold snaps.
Twin Immersion Elements
The 200L Direct cylinder's two 3kW Incoloy elements allow for boost and economy heating modes, giving flexibility over how quickly and how much hot water is heated at any one time.
Duplex Stainless Steel Build
The cylinder's inner vessel is TIG welded from Duplex stainless steel and factory pressure-tested to 15 bar, giving strong corrosion resistance for long service life.
Solar PV & Smart Control Ready
The boiler's FN input can be wired to a solar PV inverter's load-management relay to divert surplus generation into space heating, and the optional C.MI2 module unlocks remote app control.
| Boiler — General | |
| Model / MPN | EHCEPV14.4/200 |
| Boiler range | Comet PV Model 2 (7.2 / 9.6 / 12.0 / 14.4kW, field-selectable) |
| Rated output (this package) | 14.4kW |
| Boiler dimensions (H x W x D) | 716 x 316 x 235mm |
| Boiler weight | ≈20.5kg |
| Boiler connections | G3/4" (inside thread) |
| Safety class | IP22 |
| Outlet flow temperature range | 20 – 85°C |
| Max. medium temperature | 100°C |
| Max. system pressure | 0.3MPa (3 bar) |
| Min. system pressure | 0.05MPa (0.5 bar) |
| Built-in expansion vessel | 5 litres, 1.5 bar pre-charge |
| Boiler — Electrical | |
| Rated voltage | 240V 1N~ (single phase) |
| MCB rating | 63A |
| Load current | 60.0A |
| Min. power supply cable c.s.a.* | 10mm² |
| Max. power supply cable c.s.a. | 16mm² |
| Max. allowed network impedance | 0.22Ω |
| RCD protection | 30mA Residual Current Device required on supply |
| Cylinder — 200L Neptune Direct | |
| Cylinder capacity | 200 litres |
| Cased height | 1120mm |
| Cased diameter | 580mm |
| Construction | Duplex stainless steel, TIG welded |
| Factory pressure test | 15 bar |
| Insulation | CFC- and HCFC-free polyurethane foam |
| Regulatory status | Controlled service – England & Wales Building Reg. G3 / Scotland Technical Standard P3 / N. Ireland Building Reg. Part F |
| Max. inlet mains water pressure | 12 bar |
| Operating pressure | 3.0 bar |
| Expansion vessel charge pressure | 3.0 bar |
| Expansion valve opening pressure | 6.0 bar |
| Max. operating pressure | 7.0 bar |
| T&P relief valve opening | 7.0 bar |
| Immersion elements | 2 x 3kW, 240V, Incoloy (upper boost / lower economy) |
| Warranty | |
| Boiler warranty | 2 years parts & labour, subject to registration within 60 days and annual servicing |
| Cylinder warranty | 2 years parts & labour from commissioning, subject to registration |
| Stainless steel inner vessel | 25-year guarantee (domestic installations) |
*Minimum permitted cable size; actual installation cable size must be calculated by a qualified electrician per BS7671, accounting for cable type and installation method.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The EHC Comet PV 14.4kW Electric Boiler & 200L Direct Cylinder Package (EHCEPV14.4/200) pairs a multi-output electric system boiler, field-configurable across 7.2 / 9.6 / 12.0 / 14.4kW, with a 200-litre Neptune Direct Unvented Stainless Steel Cylinder. Unlike an indirect cylinder, the Direct cylinder is heated purely by its own twin 3kW immersion elements, so the boiler is dedicated entirely to space heating — a straightforward configuration for properties with lower hot water demand or where heating and hot water are intentionally kept independent.
Qualified Installation Required
This boiler must be installed, commissioned, and electrically connected by a qualified electrician in accordance with BS7671. The unvented cylinder is a controlled service under Building Regulation G3 (England & Wales), Technical Standard P3 (Scotland), or Building Regulation Part F (Northern Ireland) and must only be fitted by a competent, G3-qualified installer. A magnetic filter must be fitted to the boiler — failure to do so will invalidate the manufacturer's warranty.
Boiler Dedicated to Space Heating
Because the Direct cylinder heats independently via its own immersion elements, the Comet PV boiler in this package can be commissioned for heating only, simplifying control wiring where a separate, self-contained hot water solution is preferred. The boiler retains its full feature set — Solar PV integration, weather compensation, and optional Smart App control via the C.MI2 Internet Module — for the heating circuit.
Direct Cylinder Has No Faster-Reheat Coil
Unlike the equivalent Indirect (200IND) package, this Direct cylinder has no internal coil connected to the boiler's primary circuit — all hot water is generated by the two 3kW immersion elements. Recovery time will be slower than an Indirect cylinder of the same capacity. Where a property has high or frequent hot water demand, consider the Indirect (EHCEPV14.4/200IND) or Pre-Plumbed Indirect (EHCEPV14.4/200PPC) packages instead.
Field-Configurable Output
A single boiler chassis covers 7.2, 9.6, 12.0, or 14.4kW via an on-board DIP switch, so installers can right-size the heat output to the building's calculated heat loss without stocking multiple boiler models.
Simple, Self-Contained Hot Water
With hot water generated entirely by the cylinder's own immersion elements, the system requires no primary coil plumbing between boiler and cylinder, simplifying pipework for heating-only boiler installations.
Weather Compensation
An outdoor temperature sensor (Tos) lets the boiler's controller adjust flow temperature to a selectable heating curve, reducing energy use during milder weather while maintaining comfort during cold snaps.
Twin Immersion Elements
The 200L Direct cylinder's two 3kW Incoloy elements allow for boost and economy heating modes, giving flexibility over how quickly and how much hot water is heated at any one time.
Duplex Stainless Steel Build
The cylinder's inner vessel is TIG welded from Duplex stainless steel and factory pressure-tested to 15 bar, giving strong corrosion resistance for long service life.
Solar PV & Smart Control Ready
The boiler's FN input can be wired to a solar PV inverter's load-management relay to divert surplus generation into space heating, and the optional C.MI2 module unlocks remote app control.
| Boiler — General | |
| Model / MPN | EHCEPV14.4/200 |
| Boiler range | Comet PV Model 2 (7.2 / 9.6 / 12.0 / 14.4kW, field-selectable) |
| Rated output (this package) | 14.4kW |
| Boiler dimensions (H x W x D) | 716 x 316 x 235mm |
| Boiler weight | ≈20.5kg |
| Boiler connections | G3/4" (inside thread) |
| Safety class | IP22 |
| Outlet flow temperature range | 20 – 85°C |
| Max. medium temperature | 100°C |
| Max. system pressure | 0.3MPa (3 bar) |
| Min. system pressure | 0.05MPa (0.5 bar) |
| Built-in expansion vessel | 5 litres, 1.5 bar pre-charge |
| Boiler — Electrical | |
| Rated voltage | 240V 1N~ (single phase) |
| MCB rating | 63A |
| Load current | 60.0A |
| Min. power supply cable c.s.a.* | 10mm² |
| Max. power supply cable c.s.a. | 16mm² |
| Max. allowed network impedance | 0.22Ω |
| RCD protection | 30mA Residual Current Device required on supply |
| Cylinder — 200L Neptune Direct | |
| Cylinder capacity | 200 litres |
| Cased height | 1120mm |
| Cased diameter | 580mm |
| Construction | Duplex stainless steel, TIG welded |
| Factory pressure test | 15 bar |
| Insulation | CFC- and HCFC-free polyurethane foam |
| Regulatory status | Controlled service – England & Wales Building Reg. G3 / Scotland Technical Standard P3 / N. Ireland Building Reg. Part F |
| Max. inlet mains water pressure | 12 bar |
| Operating pressure | 3.0 bar |
| Expansion vessel charge pressure | 3.0 bar |
| Expansion valve opening pressure | 6.0 bar |
| Max. operating pressure | 7.0 bar |
| T&P relief valve opening | 7.0 bar |
| Immersion elements | 2 x 3kW, 240V, Incoloy (upper boost / lower economy) |
| Warranty | |
| Boiler warranty | 2 years parts & labour, subject to registration within 60 days and annual servicing |
| Cylinder warranty | 2 years parts & labour from commissioning, subject to registration |
| Stainless steel inner vessel | 25-year guarantee (domestic installations) |
*Minimum permitted cable size; actual installation cable size must be calculated by a qualified electrician per BS7671, accounting for cable type and installation method.
