The Drayton LP241 24 Hour Electronic Programmer (25474) is a two-channel programmer giving independent 24-hour timings for heating and hot water, ideal where each channel needs its own schedule but the same programme can run every day of the week. Rather than tying heating and hot water to a single set of switching times, the LP241 lets each circuit operate on its own pattern for genuinely efficient energy use.
With up to 3 on/off periods per day per channel, integral boost and advance modes, holiday mode, and a backlit display, the LP241 is Boiler Plus compliant when used alongside a room thermostat, making it a solid choice for fully pumped or gravity-fed systems needing separate heating and hot water control.
24hr
Programme Cycle
2 Channel
Heating & Hot Water
3
On/Off Periods per Day
230V
Supply Voltage
93×148×31mm
H×W×D
2 Years
Guarantee
Separate Heating & Hot Water Timings
Two independent channels allow heating and hot water to run on their own schedules, giving greater scope for efficient energy use.
24-Hour Programme
Runs the same programme every day of the week, with up to 3 on/off switching periods available on each channel.
Boost & Advance Functions
The integral boost and advance modes allow extra heating or hot water on demand, or advance the programme to the next scheduled period.
Boiler Plus Compliant
When installed with a room thermostat, the LP241 meets the additional control requirements under Boiler Plus regulations.
Holiday Mode & Backlit Screen
A holiday mode setting suspends the normal programme when away, while the backlit screen keeps programming clear and straightforward.
Suitable for Pumped & Gravity Systems
Works with both fully pumped and gravity-fed hot water systems, and is also suitable for underfloor heating applications.
Important Safety Information
The LP241 is designed for fixed wiring only, in accordance with current IET wiring regulations (BS 7671). Installation and wiring should be carried out by a competent person, with the mains electrical supply isolated before starting work.
Please Note
The LP241 is Boiler Plus compliant when installed alongside a room thermostat. Where a room thermostat is not already fitted, one should be added to meet current Building Regulations requirements for new or replacement boiler installations in England.
Technical Specification
Identification
Brand
Drayton
Model
LP241
Manufacturer Part Number (MPN)
25474
Range
Lifestyle LP
Country of Origin
UK
Programme & Control
Timer Cycle
24 hour (same programme every day)
Number of Channels
2 (heating and hot water, independent timing)
Switching Periods
Up to 3 on/off periods per day, per channel
Boost / Advance
Yes
Holiday Mode
Yes
Time Change
Automatic summer/winter (BST/GMT)
Electrical
Supply Voltage
230V, 50Hz
Contact Rating
SPDT, 2(1)A, volt free
Wiring
4-wire installation, fixed wiring only
Power Consumption
5.6W
Physical
Height
93mm
Width
148mm
Depth
29mm
Colour
White
Mounting
Industry-standard wallplate
Standards & Warranty
Compliance
BS 7671, Part L compliant, Boiler Plus compliant with room thermostat
Manufacturer Guarantee
2 years
Typical Applications
Fully pumped or gravity-fed systems requiring independent heating and hot water timings on the same 24-hour cycle. Underfloor heating applications alongside conventional heating and hot water zoning. Boiler Plus-compliant installations when paired with a room thermostat on a new or replacement boiler.
Frequently Asked Questions
What's the difference between the LP241 and the LP522?
The LP241 runs the same 24-hour programme every day, while the LP522 offers 5-day/2-day programming with separate weekday and weekend schedules. Both provide independent heating and hot water channels.
Can heating and hot water run on different schedules?
Yes. The LP241 has two independent channels, so heating and hot water can each follow their own timings rather than sharing a single programme.
Is the LP241 suitable for underfloor heating?
Yes, the LP241 is suitable for underfloor heating applications as well as conventional radiator-based heating and hot water systems.
Is the LP241 Boiler Plus compliant on its own?
The LP241 is Boiler Plus compliant when installed alongside a room thermostat. A programmer alone does not meet the full requirement — a room thermostat is also needed.
How many on/off periods can be set per day?
Each channel supports up to 3 on/off periods per day, giving flexibility for morning, midday and evening heating or hot water windows.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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