TECHNICAL SPECIFICATION GUIDE
Assure Heat
Wall-hung heat-only gas boiler
The light weight Baxi Assure heat-only gas boiler has a compact design and the discreet in-case rear flueing option gives an attractive, contemporary look that suits any modern interior. With no pump overrun it is easier & quicker to install saving time and money.
RANGE OF OUTPUTS NO PUMP OVERRUN
UK’S LIGHTEST BOILER COMPACT DESIGN
Versatile
- Available in outputs of 13, 16, 19, 25 and 30kW to suit most property types and sizes
- Up to 12 m top or rear flueing options when using 80/125 flue system
Easy to install
- One metre lead included, meaning access to the control box isn’t necessary
- Installed easily and discreetly in just about any kitchen cupboard
- With a lift weight from only 17.5 kg, it’s the UK’s lightest boiler#
- Comes with a secure locking wall-mounting bracket
- No permanent live or pump overrun needed, so installation is easier and quicker, saving time and money
Efficient
- Achieves optimum SAP and DER ratings for standard heat only boiler usage
- Compatible with the Baxi Assure range of hot water storage cylinders
User-friendly
- Front and side access makes it easy to service and maintain with minimal disruption
- Whisper-quiet operation so can be installed within living areas without causing disturbance to end users
Reliable
- Proven Baxi component technology with excellent reliability and peace of mind.
- Expertly manufactured in the UK by a trusted brand with over 150 years’ experience
- Covered by 2 years’ parts and labour warranty as standard, with extended options also available
* See baxi.co.uk for terms and conditions. # As of 1st January 2020
Technical details
| UNITS | 13 | 16 | 19 | 25 | 30 | |
| Product code | 7749446 | 7749447 | 7749448 | 7749449 | 7749450 | |
| Product Characteristics Database index number (PCDB) | 018748 | 018749 | 018750 | 018751 | 018752 | |
| CONTROLS | ||||||
| Operating mode selector switch with reset | Yes | Yes | Yes | Yes | Yes | |
| User adjustable CH temperature | Yes | Yes | Yes | Yes | Yes | |
| LED temp / status / fault diagnostic display | Yes | Yes | Yes | Yes | Yes | |
| GAS | ||||||
| Gas type (natural gas / LPG) | NG | NG | NG | NG | NG | |
| Inlet supply pressure (natural gas) | mbar | 20 | 20 | 20 | 20 | 20 |
| Heat input CH | kW max gross (QnHs) | 14.9 | 18.3 | 21.8 | 28.6 | 34.4 |
| kW min gross (QnHs) | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | |
| Heat output CH (non condensing) | kW max (Pn) | 13 | 16 | 19 | 25 | 30 |
| kW min (Pn) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | |
| Maximum gas rate | m³ / hr | 1.42 | 1.75 | 2.07 | 2.73 | 3.27 |
| ErP PRODUCT INFORMATION | ||||||
| NOx | mg / kWh | 18 | 20 | 21 | 24 | 25 |
| NOx class | 6 | 6 | 6 | 6 | 6 | |
| Sound power level, indoors | LWA dB | 37 | 39 | 41 | 45 | 49 |
| SAP 2009 annual e!ciency (PCDB / SEDBUK) | % | 93 | 93 | 93 | 93 | 93 |
| Space heating e!ciency class | A | A | A | A | A | |
| ELECTRICAL | ||||||
| Electrical supply | Volts / Hz | 230 / 50 | 230 / 50 | 230 / 50 | 230 / 50 | 230 / 50 |
| Permanent live required | No | No | No | No | No | |
| Switched live | Yes | Yes | Yes | Yes | Yes | |
| Electrical power cable fitted as standard | 1m of 3 core | Yes | Yes | Yes | Yes | Yes |
| Power consumption | Watts | 17 | 20 | 23 | 33 | 44 |
| External fuse rating | Amps | 3 | 3 | 3 | 3 | 3 |
| Internal fuse rating | 1.6T | 1.6T | 1.6T | 1.6T | 1.6T | |
| Ingress protection rating | Approval category | IPX4D | IPX4D | IPX4D | IPX4D | IPX4D |
| Pump overrun | No | No | No | No | No | |
| MECHANICAL | ||||||
| Gas supply connection | mm | 22 | 22 | 22 | 22 | 22 |
| Central heating connections | mm | 22 | 22 | 22 | 22 | 22 |
| Condensate drain connection | mm | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 |
| Top heating pipe connections | Yes | Yes | Yes | Yes | Yes | |
| HYDRAULIC | ||||||
| Compartment ventilation required | No | No | No | No | No | |
| CH system inhibitor required | Yes | Yes | Yes | Yes | Yes | |
| Heat exchanger material* AL – Aluminium | AL | AL | AL | AL | AL | |
| CONCENTRIC FLUE SYSTEMS | ||||||
| Standard horizontal flue kit length (60 / 100mm) | mm | 685 | 685 | 685 | 685 | 685 |
| Standard telescopic concentric flue | mm | 315-500 | 315-500 | 315-500 | 315-500 | 315-500 |
| Standard in-case rear telescopic concentric flue | mm | 220-345 | 220-345 | 220-345 | 220-345 | 220-345 |
| Max equivalent horizontal / vertical (60 / 100mm) | m | 6 | 6 | 6 | 6 | 6 |
| Max equivalent horizontal / vertical (80 / 125mm) | m | 12 | 12 | 12 | 12 | 12 |
| Equivalent length per 135° bend | m | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Equivalent length per 93° bend | m | 1 | 1 | 1 | 1 | 1 |
| WEIGHTS | ||||||
| Maximum installation lift weight | kg | 17. 5 | 17. 5 | 17. 5 | 17. 5 | 19.5 |
| Appliance packed gross weight (kg) | kg | 19.5 | 19.5 | 19.5 | 19.5 | 21.5 |
DIMENSIONS AND SERVICE CLEARANCES
- 5mm min
- 35mm (using rear flue)
- 190mm (using top flue)
- 120mm min when over surface 600mm deep
- 35mm min when in 300mm deep cupboard
- 5mm min in operation 500mm for servicing
INSIDE THE BOILER
Service clearances shown here are the minimum recommended dimensions.
Greater clearance will aid installation and maintenance.
COMFORT CONTROLS, EFFICIENCY BOOSTERS & FLUE KITS Find compatible products at baxi.co.uk/specification
Baxi Assure Heat
How we can help you
With Baxi, the heating system is only part of the story. We’re also passionate about giving you the service and support you need, for the lifetime of your Baxi product.
Baxi Design
Our design service team will plan and configure installations around each property’s unique requirements, free of charge.
Baxi Genuine Parts
We have a full range of approved spares and quality heating essentials for all Baxi Assure products. Visit baxi.co.uk/genuineparts for more information.
Literature and BIM libraries
We have installation instructions, user guides and BIM files for our product ranges, available at baxi.co.uk/specification
Unique maintenance plans
We provide comprehensive homeowner maintenance and support plans.
Baxi Project Hub
Baxi Project Hub is our intuitive project management portal, where specifiers and contractors can register Warranty and Gas Safe notifications for Baxi Assure installed products. There’s also the Project Hub app, so that warranty registrations and Gas Safe notifications can be done on site. Visit baxi.co.uk/projecthub or speak to your Business Development Manager to find out more.
Product Training
We offer practical, hands-on courses, covering all Baxi Assure products. They’re carried out by qualified experts at our state-of-the-art training centres nationwide. Visit baxi.co.uk/assuretraining or speak to your Business Development Manager to find out more.
Expert service and support
We’re always here to help with product queries, installations and maintenance. Visit baxi.co.uk/trade/assuretechnical or call our Technical Support Helpline on 0344 871 1525 for more information.
For everything else
Contact your Business Development Manager at baxi.co.uk/assurecontact for more information.
Baxi Assure, The Complete Home Service
As the UK moves towards a carbon neutral future alongside an ever growing demand for housing, providers are having to take a fresh approach. That means more tenanted social housing, and more economical, energyefficient new homes.
With our fresh approach, we’ll make sure we deliver the reliable, efficient heating and hot water solutions our specification partners need – for today and tomorrow.
The Baxi Assure range of solutions does just that, with a broad range of boiler, cylinder and low-carbon product packages to suit any new build or refurbished property.
Find out more at baxi.co.uk/specification
Baxi policy is one of continual improvement and development. The right to change specification and appearance without prior notice is reserved. The reproduction of colours is as accurate as photographic and printing processes allow. The consumer’s statutory rights are not affected. E&OE
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