The Joule Cyclone Direct Unvented 300L Cylinder (TCEMVD-0300NFC) is a high-capacity direct unvented hot water cylinder designed to provide reliable mains-pressure hot water for large residential properties and light-commercial installations. With a 294-litre actual capacity and a nominal 300-litre rating, it is suited to demanding hot-water applications where dependable storage and high simultaneous demand are important.
Manufactured using LDX 2101 stainless steel with a coated mild-steel outer casing and dense PU foam insulation, the cylinder is designed for durability, corrosion resistance and effective heat retention. It incorporates two 3 kW immersion heaters at 230 V to support rapid recovery and is tested to BS EN 12897:2016, with a 25-year warranty for long-term peace of mind.
300L Rated Capacity
Direct Unvented
2 × 3kW Immersion
25-Year Warranty
294 L Actual Capacity
High-capacity storage for demanding hot-water requirements.
2 × 3kW Immersions
Two 3 kW immersion heaters operating at 230 V.
7 bar Operating Pressure
Designed for unvented operation with mains-pressure water.
BS EN 12897:2016
Tested to the specified British standard.
Applications & suitability
Large Residential Properties
Suitable for large homes with multiple bathrooms and high simultaneous hot-water demand.
Light Commercial
Designed for small commercial properties such as guest houses, offices and staff facilities.
New Builds & Renovations
A high-capacity mains-pressure cylinder for new-build and renovation projects.
High-Demand Installations
Ideal where low heat loss, durability, long service life and British-standard testing are priorities.
Key specifications
| Model |
TCEMVD-0300NFC |
| Brand |
CYCLONE |
| Capacity |
300 L rated |
| Actual Capacity |
294 L |
| Product Group Code |
DIRECT |
| Item Category Code |
Stainless |
| ERP Type |
DirectUnvented |
| Cylinder Material |
LDX 2101 stainless steel |
| Outer Casing |
Coated mild steel |
| Thermal Insulation |
Dense PU foam |
| Foam Thickness |
0 mm |
| Number of Immersions |
2 |
| Immersion Specification |
3 kW @ 230 V |
| Maximum Mains Water Pressure |
10 bar |
| Operating Pressure (T&P) |
7 bar |
| Safety Temperature |
90 °C |
| Unit Weight Empty |
53 kg |
| Unit Weight Full |
353 kg |
| Heat Loss |
2.21 kWh/24h |
| Tested to Standard |
BS EN 12897:2016 |
| Warranty |
25 years |
Installation & compatibility
The Joule Cyclone TCEMVD-0300NFC is a direct unvented cylinder designed for mains-pressure hot-water systems. With a maximum mains water pressure of 10 bar and an operating pressure of 7 bar, it is intended for installations requiring high-capacity stored hot water. Always ensure installation is carried out in accordance with applicable requirements and the manufacturer's installation instructions.
Design & performance benefits
High-Capacity Storage
The 294 L actual capacity provides substantial hot-water storage for high-demand applications.
LDX 2101 Stainless Steel
The stainless-steel cylinder construction is designed for durability and corrosion resistance.
Dual Immersion Heating
Two 3 kW immersion heaters provide the specified electric heating capacity.
Heat Retention
Dense PU foam insulation contributes to a specified heat loss of 2.21 kWh/24h.
Additional installation features
Direct System
Designed as a direct unvented hot water cylinder.
Mains Pressure
Suitable for mains-pressure hot-water applications with the specified pressure ratings.
British Standard Tested
Tested to BS EN 12897:2016 as specified.
Ideal for
The Joule Cyclone Direct Unvented 300L Cylinder is ideal for large homes, multiple-bathroom properties, guest houses, offices and staff facilities requiring high-capacity mains-pressure hot water. Its 294 L actual capacity, dual 3 kW immersion heaters, LDX 2101 stainless-steel construction and 25-year warranty make it a suitable choice for high-demand new-build and renovation installations where durability and long-term performance are key considerations.
At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.
🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
for selected local areas.
Eligible Postcodes Include:
- RG*
- SL*
- OX10*, OX11*, OX49*
- HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
- WD*, HA*, UB*, TW*, KT*
- W1* – W9*
- NW*, SW*
Delivery Time: 2–4 working days
Shipping Cost: £0.00
📦 Standard Shipping (Weight-Based Rates)
For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.
- For cart weight between 0–2 kg, the shipping cost is £4.50 with a delivery time of 2–4 working days.
- For cart weight between 2–24 kg, the shipping cost is £9.99 with a delivery time of 2–4 working days.
- For cart weight between 24 kg and above, the shipping cost is £60 with a delivery time of 2–4 working days.
🧱 Block Salt (Harvey’s) – Unit-Based Shipping
This rate applies only to Harvey’s block salt products.
- £7.99 is charged for every 3 items.
- The charge increases by £7.99 for each additional set of 3 items.
Examples:
- 1–3 items → £7.99
- 4–6 items → £15.98
- 7–9 items → £23.97
Delivery Time: 2–4 working days
📏 Large / Long Items (Length-Based Shipping)
For oversized items where the product length is 1.5 metres or more:
Conditions:
- Product length ≥ 1.5 m
- Cart weight ≤ 40 kg
Shipping Cost: £18.00 (flat rate)
Delivery Time: 2–4 working days
Collection from Store
Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge. For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.
