Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater vs Sunray Grandby 3-Person Outdoor Sauna

The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater costs $3,796 and the Sunray Grandby 3-Person Outdoor Sauna costs $3,990. This comparison covers the full spec sheets of both, the deciding difference between them, and which buyer each one fits.

Prices verified August 2026

How we vet

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Our verdict

The choice between the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater ($3,796) and the Sunray Grandby 3-Person Outdoor Sauna ($3,990) comes down to exterior height. The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80", while the Sunray Grandby 3-Person Outdoor Sauna offers 87". The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater saves you $194; pay the difference for the Sunray Grandby 3-Person Outdoor Sauna only if that gap buys a spec you will use.

Prices verified August 2026.

How we vet

Which one is right for you?

It depends on your situation.

Choose the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater if

Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater: You want exterior height of 80". The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater also costs $194 less than the Sunray Grandby 3-Person Outdoor Sauna.

Choose the Sunray Grandby 3-Person Outdoor Sauna if

Sunray Grandby 3-Person Outdoor Sauna: You want exterior height of 87".

Full specs comparison

Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater vs Sunray Grandby 3-Person Outdoor Sauna full spec comparison
SpecSunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia HeaterSunray Grandby 3-Person Outdoor Sauna
Price$3,796$3,990
Type··
Heat Type··
Temp Range··
Heat-Up Time··
Capacity··
Dimensions54" x 36" x 80"72" x 47" x 87"
Weight335 lbs425 lbs
EMF Level··
Power220V, 50/60HZ 30 AMP dedicated outlet required 4500 WattsETL/CSA Certified - Meets all US and Canadian electrical safety standards - 120V, 20 amps
Warranty··

Pros and cons

Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater

Pros

    Cons

      Sunray Grandby 3-Person Outdoor Sauna

      Pros

        Cons

          Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater vs Sunray Grandby 3-Person Outdoor Sauna: common questions

          How much more does the Sunray Grandby 3-Person Outdoor Sauna cost than the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater?

          The Sunray Grandby 3-Person Outdoor Sauna costs $3,990, which is $194 more than the $3,796 Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater. Beyond price, the main spec difference is exterior height: the Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87", the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80".

          Is the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater worth it over the Sunray Grandby 3-Person Outdoor Sauna?

          It depends on the spec you need, and we do not name one of these two better than the other. The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80", while the Sunray Grandby 3-Person Outdoor Sauna offers 87". The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater costs $3,796 and the Sunray Grandby 3-Person Outdoor Sauna costs $3,990, a difference of $194.

          What is the main difference between the Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater and the Sunray Grandby 3-Person Outdoor Sauna?

          The Sunray Aston 1-2 Person Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80"; the Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87". That is the deciding spec difference between the two.

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