Best Thermostats

Thermostat Comparison 2026

Best Product

SALUS RT510RF

SALUS RT510RF

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Amazon

Bestseller

ESI Esrtp4+

ESI Esrtp4+

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Amazon

EBERLE RTR - E 6202

EBERLE RTR - E 6202

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Amazon

Speedo thermostat

Speedo thermostat

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Amazon

Honeywell RTH221B

Honeywell RTH221B

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Amazon

Best Price

COMPUTHERM thermostat

COMPUTHERM thermostat

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Amazon

EBERLE RTR-E 3502

EBERLE RTR-E 3502

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Amazon

Our Ratings

Model

Customer Ratings

Seller

Available From

Manufacturer

Dimensions

Operating voltage

1

Best Product

SALUS RT510RF

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

SALUS RT510RF

Bewertung

2533 Reviews

Zum Anbieter

Amazon

Available at

amazon

£39.93

eBay

£37.10

onbuy.com

£51.00

Manufacturer

SALUS

Dimensions

1,2 x 3,9 x 3,9 in

Operating voltage

230 V

2

Bestseller

ESI Esrtp4+

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

ESI Esrtp4+

Bewertung

796 Reviews

Zum Anbieter

Amazon

Available at

amazon

£67.95

eBay

£42.30

Manufacturer

ESI

Dimensions

2,5 x 5,8 x 9,2 in

Operating voltage

3

EBERLE RTR - E 6202

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

EBERLE RTR - E 6202

Bewertung

896 Reviews

Zum Anbieter

Amazon

Available at

amazon

£34.91

Rapidonline.com

£43.56

Manufacturer

EBERLE

Dimensions

1 x 3 x 3 in

Operating voltage

230 V

4

Speedo thermostat

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

Speedo thermostat

Bewertung

2500 Reviews

Zum Anbieter

Amazon

Available at

amazon

£179.99

Manufacturer

Speedo

Dimensions

Operating voltage

4,5 V

5

Honeywell RTH221B

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

Honeywell RTH221B

Bewertung

7133 Reviews

Zum Anbieter

Amazon

Available at

amazon

£36.19

eBay

Check Price

Manufacturer

Honeywell

Dimensions

Operating voltage

240 V

6

Best Price

COMPUTHERM thermostat

Vergleichsergebnis

Rating

Excellent

05 / 2026

Model

COMPUTHERM thermostat

Bewertung

661 Reviews

Zum Anbieter

Amazon

Available at

amazon

£29.50

eBay

£28.50

Manufacturer

Dimensions

1,6 x 3,9 x 5,5 in

Operating voltage

24 V

7

EBERLE RTR-E 3502

Vergleichsergebnis

Rating

Very Good

05 / 2026

Model

EBERLE RTR-E 3502

Bewertung

110 Reviews

Zum Anbieter

Amazon

Available at

amazon

£35.40

eBay

£45.85

Manufacturer

EBERLE

Dimensions

1,1 x 3 x 3 in

Operating voltage

230 V