JAB TSC 150L Direct E7 Man-Fill Thermal Store Cylinder
The JAB TSC 150L Direct E7 Man-Fill is a direct electric open-vented thermal store designed to deliver mains-pressure hot water using Economy 7 or off-peak electricity, specifically engineered for new-build apartments and other buildings where routing an unvented cylinder discharge pipe is impractical or prohibited. As a thermal store, the primary water vessel operates at atmospheric pressure — eliminating the need for a temperature and pressure relief valve, discharge pipework, or Part G G3 annual maintenance. The 150-litre store charges overnight during cheap-rate hours, with mains-pressure hot water delivered via an internal heat exchanger coil. The Man-Fill configuration means the store is filled via a dedicated fill point, keeping the primary circuit separate from the domestic cold mains. HWA specification compliant and Part L1A approved.
The JAB TSC operates as an open vented thermal store at atmospheric pressure. Unlike unvented cylinders, it does not require a temperature and pressure relief valve or a discharge pipe. This directly solves a common installation problem in apartment buildings where Building Regulations Part G prohibits routing a discharge pipe into a soil stack — making the JAB TSC the compliant solution where an unvented cylinder cannot legally be installed.
The mains cold water supply passes through an internal heat exchanger coil inside the primary store. The store water is heated by the immersion heater and transfers heat across the coil to the incoming cold, delivering fast-flowing mains-pressure hot water to taps and showers — with no pump required and no pressure losses typical of gravity-fed systems.
The JAB TSC is specifically designed for Economy 7 and off-peak electricity tariffs. The large store volume (150 L, 180 L or 210 L) is heated overnight during cheap-rate hours and holds sufficient hot energy for an entire day's domestic use. This makes it the natural choice for new-build apartments without a gas connection where electricity tariff optimisation reduces running costs.
The immersion elements are permanently immersed in the same primary (store) water, which is never renewed. Since this water is not replaced, no scaling of the elements occurs — even in hard water areas. JAB thermal stores therefore do not require the annual maintenance that unvented cylinders demand under Building Regulations, reducing whole-life running costs.
The Man-Fill (manual fill) configuration means the primary store is filled manually via a fill point rather than being permanently connected to the mains cold supply for the store. This simplifies the installation pipework and is the preferred configuration for new-build apartments where the store circuit is kept isolated from the domestic mains. The mains connection is only made to the heat exchanger coil serving the hot water outlets.
The JAB TSC range fully complies with the HWA (Hot Water Association) specification for thermal stores and meets Part L1A Building Regulations for both new build and refurbishment. JAB's innovative design ensures installation and ongoing maintenance are straightforward — the installer-friendly layout reduces commissioning time on site.
| Parameter | Value |
|---|---|
| Store volume | 150 L |
| Heating type | Direct electric — Economy 7 / off-peak |
| Fill configuration | Manual fill (Man-Fill) |
| Store operating pressure | Atmospheric (open vented) |
| Hot water pressure | Mains pressure (via internal heat exchanger coil) |
| T&P relief valve required | No |
| Discharge pipe required | No |
| Annual G3 maintenance | Not required |
| Regulatory compliance | HWA Thermal Store Specification; Part L1A (new build and refurbishment) |
| Scale risk on elements | Minimal — primary water not renewed |
| Installer qualification | Competent plumber + Part P electrician for wiring |
What is the difference between a thermal store and an unvented cylinder?
Does the JAB TSC need a qualified installer?
Does the JAB thermal store need annual servicing like an unvented cylinder?
Can the JAB TSC be used in a hard water area?
What tariff should the JAB TSC be used with?
Original: $2,305.24
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JAB TSC 150L Direct E7 Man-Fill Thermal Store Cylinder
The JAB TSC 150L Direct E7 Man-Fill is a direct electric open-vented thermal store designed to deliver mains-pressure hot water using Economy 7 or off-peak electricity, specifically engineered for new-build apartments and other buildings where routing an unvented cylinder discharge pipe is impractical or prohibited. As a thermal store, the primary water vessel operates at atmospheric pressure — eliminating the need for a temperature and pressure relief valve, discharge pipework, or Part G G3 annual maintenance. The 150-litre store charges overnight during cheap-rate hours, with mains-pressure hot water delivered via an internal heat exchanger coil. The Man-Fill configuration means the store is filled via a dedicated fill point, keeping the primary circuit separate from the domestic cold mains. HWA specification compliant and Part L1A approved.
The JAB TSC operates as an open vented thermal store at atmospheric pressure. Unlike unvented cylinders, it does not require a temperature and pressure relief valve or a discharge pipe. This directly solves a common installation problem in apartment buildings where Building Regulations Part G prohibits routing a discharge pipe into a soil stack — making the JAB TSC the compliant solution where an unvented cylinder cannot legally be installed.
The mains cold water supply passes through an internal heat exchanger coil inside the primary store. The store water is heated by the immersion heater and transfers heat across the coil to the incoming cold, delivering fast-flowing mains-pressure hot water to taps and showers — with no pump required and no pressure losses typical of gravity-fed systems.
The JAB TSC is specifically designed for Economy 7 and off-peak electricity tariffs. The large store volume (150 L, 180 L or 210 L) is heated overnight during cheap-rate hours and holds sufficient hot energy for an entire day's domestic use. This makes it the natural choice for new-build apartments without a gas connection where electricity tariff optimisation reduces running costs.
The immersion elements are permanently immersed in the same primary (store) water, which is never renewed. Since this water is not replaced, no scaling of the elements occurs — even in hard water areas. JAB thermal stores therefore do not require the annual maintenance that unvented cylinders demand under Building Regulations, reducing whole-life running costs.
The Man-Fill (manual fill) configuration means the primary store is filled manually via a fill point rather than being permanently connected to the mains cold supply for the store. This simplifies the installation pipework and is the preferred configuration for new-build apartments where the store circuit is kept isolated from the domestic mains. The mains connection is only made to the heat exchanger coil serving the hot water outlets.
The JAB TSC range fully complies with the HWA (Hot Water Association) specification for thermal stores and meets Part L1A Building Regulations for both new build and refurbishment. JAB's innovative design ensures installation and ongoing maintenance are straightforward — the installer-friendly layout reduces commissioning time on site.
| Parameter | Value |
|---|---|
| Store volume | 150 L |
| Heating type | Direct electric — Economy 7 / off-peak |
| Fill configuration | Manual fill (Man-Fill) |
| Store operating pressure | Atmospheric (open vented) |
| Hot water pressure | Mains pressure (via internal heat exchanger coil) |
| T&P relief valve required | No |
| Discharge pipe required | No |
| Annual G3 maintenance | Not required |
| Regulatory compliance | HWA Thermal Store Specification; Part L1A (new build and refurbishment) |
| Scale risk on elements | Minimal — primary water not renewed |
| Installer qualification | Competent plumber + Part P electrician for wiring |
What is the difference between a thermal store and an unvented cylinder?
Does the JAB TSC need a qualified installer?
Does the JAB thermal store need annual servicing like an unvented cylinder?
Can the JAB TSC be used in a hard water area?
What tariff should the JAB TSC be used with?
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Description
The JAB TSC 150L Direct E7 Man-Fill is a direct electric open-vented thermal store designed to deliver mains-pressure hot water using Economy 7 or off-peak electricity, specifically engineered for new-build apartments and other buildings where routing an unvented cylinder discharge pipe is impractical or prohibited. As a thermal store, the primary water vessel operates at atmospheric pressure — eliminating the need for a temperature and pressure relief valve, discharge pipework, or Part G G3 annual maintenance. The 150-litre store charges overnight during cheap-rate hours, with mains-pressure hot water delivered via an internal heat exchanger coil. The Man-Fill configuration means the store is filled via a dedicated fill point, keeping the primary circuit separate from the domestic cold mains. HWA specification compliant and Part L1A approved.
The JAB TSC operates as an open vented thermal store at atmospheric pressure. Unlike unvented cylinders, it does not require a temperature and pressure relief valve or a discharge pipe. This directly solves a common installation problem in apartment buildings where Building Regulations Part G prohibits routing a discharge pipe into a soil stack — making the JAB TSC the compliant solution where an unvented cylinder cannot legally be installed.
The mains cold water supply passes through an internal heat exchanger coil inside the primary store. The store water is heated by the immersion heater and transfers heat across the coil to the incoming cold, delivering fast-flowing mains-pressure hot water to taps and showers — with no pump required and no pressure losses typical of gravity-fed systems.
The JAB TSC is specifically designed for Economy 7 and off-peak electricity tariffs. The large store volume (150 L, 180 L or 210 L) is heated overnight during cheap-rate hours and holds sufficient hot energy for an entire day's domestic use. This makes it the natural choice for new-build apartments without a gas connection where electricity tariff optimisation reduces running costs.
The immersion elements are permanently immersed in the same primary (store) water, which is never renewed. Since this water is not replaced, no scaling of the elements occurs — even in hard water areas. JAB thermal stores therefore do not require the annual maintenance that unvented cylinders demand under Building Regulations, reducing whole-life running costs.
The Man-Fill (manual fill) configuration means the primary store is filled manually via a fill point rather than being permanently connected to the mains cold supply for the store. This simplifies the installation pipework and is the preferred configuration for new-build apartments where the store circuit is kept isolated from the domestic mains. The mains connection is only made to the heat exchanger coil serving the hot water outlets.
The JAB TSC range fully complies with the HWA (Hot Water Association) specification for thermal stores and meets Part L1A Building Regulations for both new build and refurbishment. JAB's innovative design ensures installation and ongoing maintenance are straightforward — the installer-friendly layout reduces commissioning time on site.
| Parameter | Value |
|---|---|
| Store volume | 150 L |
| Heating type | Direct electric — Economy 7 / off-peak |
| Fill configuration | Manual fill (Man-Fill) |
| Store operating pressure | Atmospheric (open vented) |
| Hot water pressure | Mains pressure (via internal heat exchanger coil) |
| T&P relief valve required | No |
| Discharge pipe required | No |
| Annual G3 maintenance | Not required |
| Regulatory compliance | HWA Thermal Store Specification; Part L1A (new build and refurbishment) |
| Scale risk on elements | Minimal — primary water not renewed |
| Installer qualification | Competent plumber + Part P electrician for wiring |
