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Grant Vortex Eco Outdoor 15-21kW Heat Only Oil Boiler
4.5
2 Reviews
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Frequently bought together
Overview
- 2 year guarantee
- Award winning condensing heat exchanger
- Whisper quiet
- Optional pipe entry points
- Frost stat set to 5°C (factory fitted inside control panel)
- Condensate trap (factory-fitted in rear)
- Riello RDB burner (with plug and socket connection)
- Efficiency of 90.3 – 90.8% GROSS (SAP2009)
Technical specification
Boiler Type
Heat Only
Depth
505 mm
Height
908 mm
Width
505 mm
Maximum Horizontal Flue 125mm
3 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.93
CH Condensing Max Output
21 kW
Heat Output
21 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Range Description
Grant Vortex Eco External
Manufacturer Model No
VTXOMECO15/21
Made To Order
N
Brand Name
Grant
Data sheets
Worcester Bosch Danesmoor System Utility 18/25 Boiler 7731600152
The Worcester Bosch Greenstar Danesmoor System Utility 18/25 (Part Number: 7731600152) delivers quiet, efficient, and dependable heat from inside your home. Built specifically for kitchen, utility room, or garage positioning, its clean white casing and compact dimensions blend discreetly with modern appliances. Because it is a complete system boiler, the primary circulating pump and expansion vessel are pre-assembled inside the unit, eliminating the need for header tanks in the attic. Delivering an adjustable 18kW to 25kW output, this ErP A-rated oil boiler pairs with an unvented cylinder to deliver fast radiator heat-up times and constant high-pressure hot water.
£3,110.02 each (Inc. VAT)
Worcester Bosch Danesmoor System External 18/25 Boiler 7731600154
Streamline your heating installation with the Worcester Bosch Greenstar Danesmoor System External 18/25 (SKU: 7731600154). Unlike standard heat-only boilers, this outdoor system model incorporates essential hydraulic components—including a high-efficiency circulating pump and expansion vessel—directly inside its robust weatherproof housing. This eliminates the necessity for a loft-based cold-water cistern, making it perfect for loft conversions or homes looking to modernise their central heating layout. Delivering an adaptable 18kW–25kW output, it couples directly with an unvented hot water cylinder to supply high-pressure domestic hot water and efficient radiator heat across 3-4 bedroom properties.
£3,883.09 each (Inc. VAT)
Grant Vortex Pro 36kW Combi Oil Boiler ErP VTXCOMBI36
The powerhouse of the range, the Grant Vortex Pro 36kW Combi Oil Boiler ErP (VTXCOMBI36) is engineered for expansive multi-bathroom properties with high simultaneous heating and hot water demands, all without the requirement of a separate hot water cylinder.
£4,575.23 each (Inc. VAT)
Grant EZ200B Flue Kit 26-70KW (inc Terminal Guard) Black
The Yellow system has been developed to make the installation of Grant boilers both quick and simple, whilst ensuring trouble free operation, even in the most exposed site conditions.
The round low level kits feature self-sealing ducts requiring no silicone or tape for joints, and the unique quick-fit clamp arrangement ensures a perfect seal every time. In fact, the new telescopic flue system requires only two simple operations to complete the installation. The kits are compatible with all Grant boilers, (except Outdoor Modules) including condensing models.
The flue terminal has a compact design, making it ideal for installations where the visual appearance is important. The new cone design reduces the possibility of condensate, produced in the combustion process, staining external wall surfaces or patio slabs
£401.62 each (Inc. VAT)