Baxi Assure heat only Boilers

Heat Only Boilers

Baxi Assure Heat

This light-weight heat only gas boiler comes with a 2-year parts and labour warranty and has a compact design and discreet rear flue option

Features and Benefits

Multiple outputs

Available in outputs of 13, 16, 19, 25 and 30kW

Accessories included

Comes with a secure locking wall-mounting bracket


Compatible with Baxi Assure range of hot water cylinders

Quick servicing

Front and side access allowing a quick and easy servicing with no special tools required


No pump overrun or permanent live required, saving time and money during installation
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Product Literature

Installation and Service Manuals

Installation and Service Manuals

User Guides

User Guides

Specification Guides

Specification Guides

Product Fiche

Product Fiche

Product Documentation

No documentation available.

Energy Labels

Energy Labels

Product Documentation

No documentation available.

Baxi Heat Only Boiler Dimensions


A: Boiler Width = 370mm

B: Boiler Height = 625mm

C: Boiler Depth = 270mm

D: Side Clearance = 5mm

E: Upper Clearance = 190mm / 35mm if using rear flue

F: Lower Clearance = 120mm / 35mm in 300m deep cupboard

G: Front Clearance= 5mm in operation / 500mm for servicing

Technical Specification

Product Model








Product Code 773726677372677737268773726977372707737271
Nominal capacitylitres125145170210250300
Internal expansion with floating baffle YesYesYesYesYesYes
Insulation thicknessmm606060606060
Immersion heater ratingNo. kW1 x 31 x 31 x 31 x 31 x 31 x 3
Weight emptykg434852556169
Weight fullkg183203234254297352
Standing heat loss (daily)kWh/ 24h1.
Standing heat loss (yearly)kWh/ year383.3430.7438518.3587.7616.9
Max flow at 3 barl/ min767676767676
Max flow at 1 barl/ min454545454545
Recovery time at 15 l / min, 80°C primary flow from 15°C to 60°C 232422283439
Recovery 70% draw offmins151716192327
ErP Product Information
Storage volume at 3 barlitres137155178195233283
Standing lossWatts505559657079
Water heating energy efficiency class BBBBCC
Factory-set water heater
Thermostat temperature°C606060606060

Contact your Baxi Assure Representative

Our Baxi Assure Sales Team is on hand to help you with all your Residential Specification hot water and heating requirements.

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Baxi Assure

The Baxi Assure range of products is designed to offer a complete and simple, single-branded solution for all your domestic hot water and heating requirements.