Vaillant ecoTEC plus 418 18kW Heat Only (Regular) Boiler is a compact and efficient heat-only boiler designed for traditional heating systems that use a separate hot water cylinder and cold water storage tank. With an 18kW output, ErP A-rated efficiency and quiet operation, it provides reliable central heating performance for smaller homes and properties with moderate heating requirements.
VaillantecoTEC plus 41818kW Heat OnlyRegular Boiler
Output
18kW
Efficiency
ErP A-Rated
Type
Heat Only
System
Traditional / Regular
Reliable 18kW Output
The 18kW heating output provides dependable central heating performance for smaller homes and properties with moderate heating requirements.
Traditional System Compatible
Designed for conventional heating systems using a separate hot water cylinder and cold water storage tank, making it suitable for replacement projects.
Energy Efficient
ErP A-rated efficiency helps support lower energy consumption while providing consistent heating performance throughout the home.
Compact & Quiet
The compact design provides flexible installation options, while Quiet Mark approval helps ensure discreet operation in residential environments.
Specifications
| Brand | Vaillant |
| Model | ecoTEC plus 418 |
| Boiler type | Heat Only / Regular boiler |
| Output | 18kW |
| Fuel type | Natural Gas |
| Efficiency rating | ErP A-Rated |
| Heating system | Traditional / Regular heating system |
| Hot water cylinder | Required |
| Cold water storage tank | Required for traditional system setup |
| Installation | Suitable for conventional systems |
| Controls | Compatible with Vaillant VRC and senso range controls |
| Frost protection | Built-in |
| Operation | Quiet / Quiet Mark approved |
Installation & maintenance
The Vaillant ecoTEC plus 418 is designed for traditional heating systems incorporating a separate hot water cylinder and cold water storage tank. It should be installed by a suitably qualified Gas Safe registered engineer in accordance with the manufacturer's installation instructions and current safety requirements. Built-in frost protection helps protect the system during colder conditions, while regular professional servicing is recommended to maintain safe and efficient operation.
Compatibility & next steps
The ecoTEC plus 418 can be paired with compatible Vaillant controls, thermostats and weather-compensating controls for enhanced heating management. Before purchasing, check the existing heating system configuration, hot water cylinder, cold water storage arrangements, installation space and control compatibility to ensure this heat-only boiler is suitable for the intended replacement or installation.
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.
