Logic+ System

Heating

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Product Specification

BOILER MODEL	S15	S18	S24	S30
Weight (packaged) kg	31.6	31.6	31.6	31.6
Max installation weight kg	26.2	26.2	26.2	26.2
CH output (kW) min/max @ 70°C	4.8 - 15.0	4.8 - 18.0	4.8 - 24.2	6.1 - 30.3
CH output (kW) min/max @ 40°C	5.1 - 15.9	5.1 - 19.1	5.1 - 25.6	6.4 - 31.0
DHW output (kW) max	n/a	n/a	n/a	n/a
DHW flow rating I/min. 35°C rise	n/a	n/a	n/a	n/a
SEDBUK rating (2005) %	91.2	91.1	91.2	91.1
SEDBUK rating (2009/2012) %	89.4	89.7	89.7	89.6
NOx classification	CLASS 6	CLASS 6	CLASS 6	CLASS 6
Convert to LPG	No	No	No	Yes
Max horizontal flue	9m	9m	9m	8m
Max vertical flue	7.5m	7.5m	7.5m	7.5m
Powered vertical flue	22m	22m	22m	22m
Condensing boiler	Yes	Yes	Yes	Yes
Seasonal space heating efficiency class	A	A	A	A
Related heat output kW	15	18	24	30
Seasonal space heating energy efficiency ŋs %	93	93	94	93
Sound power level, indoors Lwa dB	44	46	48	48
Water heating energy efficiency class	n/a	n/a	n/a	n/a

BOILER MODEL

S15

S18

S24

S30

Weight (packaged) kg

31.6

Max installation weight kg

26.2

CH output (kW) min/max @ 70°C

4.8 - 15.0

4.8 - 18.0

4.8 - 24.2

6.1 - 30.3

CH output (kW) min/max @ 40°C

5.1 - 15.9

5.1 - 19.1

5.1 - 25.6

6.4 - 31.0

DHW output (kW) max

n/a

DHW flow rating I/min. 35°C rise

n/a

SEDBUK rating (2005) %

91.2

91.1

91.2

91.1

SEDBUK rating (2009/2012) %

89.4

89.7

89.6

NOx classification

CLASS 6

Convert to LPG

Yes

Max horizontal flue

Max vertical flue

7.5m

Powered vertical flue

22m

Condensing boiler

Yes

Seasonal space heating efficiency class

Related heat output kW

Seasonal space heating energy efficiency ŋs %

Sound power level, indoors Lwa dB

Water heating energy efficiency class

n/a

Documents and resources for Homeowners

Need help with your product or control? Download our guides for more technical information on your product.

ERP Labels

T&Cs

T&Cs

Product Specification

BOILER MODEL	S15	S18	S24	S30
Weight (packaged) kg	31.6	31.6	31.6	31.6
Max installation weight kg	26.2	26.2	26.2	26.2
CH output (kW) min/max @ 70°C	4.8 - 15.0	4.8 - 18.0	4.8 - 24.2	6.1 - 30.3
CH output (kW) min/max @ 40°C	5.1 - 15.9	5.1 - 19.1	5.1 - 25.6	6.4 - 31.0
DHW output (kW) max	n/a	n/a	n/a	n/a
DHW flow rating I/min. 35°C rise	n/a	n/a	n/a	n/a
SEDBUK rating (2005) %	91.2	91.1	91.2	91.1
SEDBUK rating (2009/2012) %	89.4	89.7	89.7	89.6
NOx classification	CLASS 6	CLASS 6	CLASS 6	CLASS 6
Convert to LPG	No	No	No	Yes
Max horizontal flue	9m	9m	9m	8m
Max vertical flue	7.5m	7.5m	7.5m	7.5m
Powered vertical flue	22m	22m	22m	22m
Condensing boiler	Yes	Yes	Yes	Yes
Seasonal space heating efficiency class	A	A	A	A
Related heat output kW	15	18	24	30
Seasonal space heating energy efficiency ŋs %	93	93	94	93
Sound power level, indoors Lwa dB	44	46	48	48
Water heating energy efficiency class	n/a	n/a	n/a	n/a

BOILER MODEL

S15

S18

S24

S30

Weight (packaged) kg

31.6

Max installation weight kg

26.2

CH output (kW) min/max @ 70°C

4.8 - 15.0

4.8 - 18.0

4.8 - 24.2

6.1 - 30.3

CH output (kW) min/max @ 40°C

5.1 - 15.9

5.1 - 19.1

5.1 - 25.6

6.4 - 31.0

DHW output (kW) max

n/a

DHW flow rating I/min. 35°C rise

n/a

SEDBUK rating (2005) %

91.2

91.1

91.2

91.1

SEDBUK rating (2009/2012) %

89.4

89.7

89.6

NOx classification

CLASS 6

Convert to LPG

Yes

Max horizontal flue

Max vertical flue

7.5m

Powered vertical flue

22m

Condensing boiler

Yes

Seasonal space heating efficiency class

Related heat output kW

Seasonal space heating energy efficiency ŋs %

Sound power level, indoors Lwa dB

Water heating energy efficiency class

n/a

Documents and resources for Installers

Need help with your product or control? Download our guides for more technical information on your product.

User Guides

Logic+ System 2 User Guide

Installation & Servicing

Logic+ System 2 Installation & Servicing Guide

Spec Sheets

Logic+ System 2 Spec Sheet

ERP Labels

T&Cs

T&Cs

Logic+ System

Choose the content that is relevant to you:

Description

Features

7 year warranty

Made in the UK

How to buy

Trustpilot Widget

Product Specification

Documents and resources for Homeowners

User Guides

Installation & Servicing

Spec Sheets

ERP Labels

T&Cs

Description

Features

7 year warranty

Made in the UK

How to buy

Trustpilot Widget

Product Specification

Documents and resources for Installers

User Guides

Installation & Servicing

Spec Sheets

ERP Labels

T&Cs