Compare Room Thermostat Prices | Compare The Build

Login / Register

                                
                                Menu

Login / Register My Projects DIY Guides

Building Supplies

Building Material Suppliers
Additives & Chemicals Aggregates & Sand Block paving Bricks & Blocks Concrete & Cement Coving Guttering & Drainage Insulation & Damp Jointing compound Joist hangers Lintels Metalwork Plasterboard Plastering Supplies Render Roofing Supplies View All

Door Supplies
Door frames & fixtures Door handles Door locks & hatches Door numbers External Doors Garage Doors Internal Doors Letterbox Loft Doors & Hatches Windows View All

Hardware
Bolts, nuts & washers Brackets Fixings & Wallplugs Furniture hardware Handles & knobs Hinges Hooks House numbers & plaques Locks & padlocks Nails Ropes, bungees & chains Screws View All

Timber Sheet Materials
Architrave Constructional timber Decorate mouldings Sheet materials Skirting board Stairs & stair parts Window boards View All
Tools

Construction Tools
Cement & paddle mixers Ladders & steps Tarpaulins, sheets & sacks Tool Storage Tool storage Torches & worklights Trolleys & carts Vacuums & Cleaners Wheelbarrows & Hand Trucks Workbenches & trestles View All

Hand Tools
Brick Bolsters & Chisels Bricklaying tools Clamps Crowbars Garden Hand Tools Hammers & Axes Hand Saws Knives & Cutters Nailers & staplers Plastering tools Pliers Screwdrivers & keys Spanners & wrenches Tool Kits Woodworking tools View All

Power Tool Accessories
Angle grinder disks Chucks, keys & holders Drill bits Holesaws Multi tool accessories Routing Sanding Sawing & Blades Screwdriver bits View All

Power Tools
Chop saws Circular Saws Drills & Impact Drivers Grinders Jigsaws Mitre, Table & Flip Saws Multi Tools & Hobby Tools Nail Guns Planer Power tool kits Radios Reciprocating Saws Routers Sanders Saws Screwdrivers View All

Workwear
Goggles & Glasses Hoodies & sweatshirts Overalls & coveralls Pest Control Safety Boots Safety Gloves Safety Hats Safety Masks Safety trainers Van vault Work jackets Work shorts Work trousers View All
Decorating Supplies

House Paint
Interior Emulsion Spray Paint Tile paint View All

Paint
Anti mould paint Chalkboard paint Emulsion paint Fence paint Floor paint Furniture paint Garden furniture paint Gloss Paints Kitchen paint Paint samples Primers & undercoats Radiator paint Specialist Paints Wood & Metal Paints View All

Painting Tools
Dust sheets Expanding foam Fillers Glues & adhesives Paint brushes Paint pads Paint Sprayers Paint stripper Sandpaper Sealants Tapes View All

Wallpaper
Lining paper Murals Sticky back plastic & window film Wallpaper Wallpaper Paste Wallpaper tools View All

Woodcare
Wood oil Wood preservatives Wood varnish Wood wax Woodstain View All
Flooring

Floor Accessories
Grout Scotias & Floor Trims Skirting & Architrave Thresholds & Reducers Tile Trims Underlay View All

Floor Tiles
Bathroom Tiles Floor Tiles Kitchen Tiles Mosaic & border tiles Outdoor tiles Sample tiles Tile Backing Boards Wall Tiles View All

Flooring Supplies
Carpet Tiles Door mats Engineered Wood Flooring adhesives Flooring samples Flooring Threshold Bars Laminate Luxury vinyl click Sheet vinyl Solid wood Vinyl flooring Vinyl Planks Vinyl Tile View All

Flooring tools
Thresholds, tbars & reducers View All

Tiling tools
Adhesive Grouting tools Tile cutters Tile scribes Tile spacers Tiling trowels View All
Garden Supplies

Fencing
Fence panels Fence posts Garden gates Gravel boards Trellis & screening View All

Garden Buildings
Arches & arbours Garden bar Garden rooms Garden storage Greenhouses Growhouses & cold frames Log Cabins Metal Sheds Plastic Sheds Playhouses Shed Base Sheds Summerhouses View All

Garden Furniture
BBQ Camping Garden Furniture Sets Garden Heating Garden ornaments Garden parasols Garden seating Garden Sofas & Lounge Sets Gazebos Hot Tubs Pizza ovens View All

Garden Tools
Chainsaws Garden power accessories Garden shredders Grass Trimmer Hedge trimmers Lawnmowers Leaf blowers & vacs Pressure washers Scarifies & tillers View All

Landscaping Supplies
Compost Decking Fertilizer & plant food Fire pits Hand tools & equipment Houseplants Lawn care Paving & walling Pergolas Plants & seeds Pots & planters Stone gravel & chippings Swings & slides Turf & artificial grass Watering hoses & ponds View All
Heating Supplies

Air Purification
Air Conditioners Air Purifiers Ceiling Fans Cooling Fans Dehumidifiers Ducting Extractor Fans Vents & Grills View All

Central Heating Systems
Boilers Central Heating Controls Heating Treatments Pipe Insulation Underfloor Heating Water Heaters Water treatment View All

Heaters
Electric Fires Fire surrounds Fireplace accessories Fireplace suites Gas Fires Logs & Firewood Portable Heaters Storage heaters Stoves View All

Plumbing Supplies
Air source heat pumps Bathroom fittings Elbows Flexible connectors Macerators Pipe Pipe fittings Plumbing tools Shower pumps Toilet fittings Toilet spares Valves & stopcocks Waste & traps View All

Radiators
Cast iron radiators Central Heating Radiators Designer radiators Electric radiators Heating elements Radiator covers Radiator valves Towel Radiators Vertical radiators View All
Kitchen & Bathroom

Bathroom Supplies
Accessories Basins Bath panels Bathroom Mirrors Bathroom suites Bathroom wall panels Baths Furniture & cabinets Taps Toilet seats Toilets View All

Home Appliances
Cooker hoods Cookers Dishwashers Freezers Fridge freezers Fridges Hobs Kettles Microwaves Ovens Tumble dryers Washer dryers Washing machines View All

Kitchen Supplies
Bar stools Cabinets Kitchen bins Kitchen doors Kitchen Handles Kitchen paint Kitchen sinks Kitchen storage & accessories Kitchen taps Kitchen tiles Kitchen worktops View All

Showers
Bath shower screens Curtain rails & rods Digital Showers Enclosures & doors Riser rails Shower curtains Shower heads Shower hoses Shower kits Shower panels Shower trays Showers Wet rooms View All
Lighting

Electrical Supplies
Batteries & chargers Cable management Consumer units & breakers Door bells EV charging Extension leads & reels Junction boxes & connectors Networking & broadband Switches & Sockets Trunking, conduit Tv aerials Wiring cables View All

Home Security
Bike locks Burglar alarms CCTV cameras Door locks & latches Fire extinguishers Gate locks Key safes & cash boxes Padlocks Safes Safety signs Smoke alarms View All

Indoor lights
Ceiling lights Childrens lights Floor lamps Lamp shades Light bulbs Light fixtures & fittings Spotlights & downlights Table lamps Wall lights View All

Outdoor Lights
Decking lights Garden string lights Lanterns Security lights Spike lights Wall Lights View All

Smart home
Smart alarms Smart cameras Smart door bells Smart door locks Smart heating Smart light bulbs Smart plugs View All

Compare thousands of DIY and building products

Compare thousands of DIY and building products

Compare thousands of DIY and building products

Compare thousands of DIY and building products

Room Thermostat | Compare The Build

Add to Project Tell me when the price changes

Room Thermostat

Heating only or cooling only

Brand Name	Siemens
Colour	White
Manufacturer Model No	RAA21
Type	Room Thermostat
Certifications Met	EN 60730-1
Depth	35.3mm
Dimensions	(H)97 mm x (W)96 mm x (D)35.3 mm
Finish	White
Guarantee	2 Years
Height	97mm
IP Rating	IP30
Mounting	Wall
Packaging Types	Each
Previously Known As	S55770-T220
Temperature Range	8 - 30°C
Unspsc V18	39121523
Unspsc V24	39121523
Weight	0.214kg
Width	96mm
Features	Heating only or cooling only, No operating elements on the front of the unit, Temperature setting range 8 - 30°C, Switching voltage 24 - 250V AC

Best Prices

City Electrical Factors

£14.70

Best Price

Visit Site In stock

The prices shown are available online and may not reflect in store. Confirm prices before visiting store.

Map View

You may also like

Mira 1.883.40.2.0 Rada Meltronic Pcb241 230V 278520 Price Comparisons | Compare The Build

Mira 1.883.40.2.0 Rada Meltronic Pcb241 230V 278520

£173.78

Cheapest at City Plumbing

View Product

Gledhill 6Kw Switch Immersion Heater (Aclass) Xb468 Price Comparisons | Compare The Build

Gledhill 6Kw Switch Immersion Heater (Aclass) Xb468

£125.46

Cheapest at City Plumbing

View Product

Baxi 236147 Thermostat Ranco LM7 Price Comparisons | Compare The Build

Baxi 236147 Thermostat Ranco LM7

£37.13

Cheapest at City Plumbing

View Product

Grohe Red Duo Chrome Boiling Water Tap & Large Tank - Straight Price Comparisons | Compare The Build

Grohe Red Duo Chrome Boiling Water Tap & Large Tank - Straight

£1,829.00

Cheapest at Plumb World

View Product