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Delta SteamScape 15kW Steam Generator

A steam generator from Delta, rated by the maker for up to 675 cu ft. Every figure below is Delta's own, linked to where it is published. Delta's published list price: $5,642 (List Price on deltafaucet.com, 29 Sep 2026).

Buy from Delta
Specifications published by Delta (13)
Heater output
Kilowatts: 15kwSteamScape 15kW Steam Generator - Delta
Room size the maker rates it for
Max Shower Volume: 675SteamScape 15kW Steam Generator - Delta
Maker's sizing rule
For natural stone or marble, multiply by 2.0. For ceramic or porcelain tile, or glass block, multiply by 1.35; Exterior Wall: For one, multiply by 1.1; for two, multiply by 1.2; Ceiling height: For a 9 ft. ceiling, multiply by 1.15; for a 10 ft. ceiling, multiply by 1.3; Note: If there is a skylight or outside window, select the next largest generatorDelta: steam generator sizing guide
Breaker / current
Breaker Capacity: 80SteamScape 15kW Steam Generator - Delta
Dimensions
17¾" x 7½" x 15½"Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Weight
Generator shipped weight - 41 lbsDelta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Water and drain connections
Water Supply - 3/8" Compression Fitting, 120 PSI max; Steam Outlet - 3/4" Brass NPT male thread; Pressure Relief Valve - 3/4" NPT female thread; Drain Outlet - Capped 1/2" Brass NPT male threadDelta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Control included
Required Equipment - 5CH-250, 5CB-550, 5CH-550, and 5CN-550 Control Interface and Steam Head.Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Drain and flush
½" Capped Drain Line for Optional Auto DrainDelta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Safety listing
UL/cUL ListedDelta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Warranty
Steam Generators – Lifetime limited warranty; Electronic Parts for Steam Bath Generators, Controls, Spa Options and Accessories – two (2) years from the date the product is received by the original consumer purchaserDelta: DSP S 5GE SMP12 240 1 Rev B (PDF)
Price on the maker's site
$5,642 (List Price on deltafaucet.com, 29 Sep 2026)SteamScape 15kW Steam Generator - Delta

As published by Delta, read on 2026-09-29. Makers revise their products; check Delta's current specification before you buy. Each maker states its own sizing rule, if any; read it on the product page.

Before you buy

  • Electrical supply. Delta lists: 240V 1ph. A licensed electrician should confirm your circuit against the installation manual before you buy.

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SteamScape 15kW Steam Generator: questions answered from Delta's specification

What size of steam room is the SteamScape 15kW Steam Generator rated for?

Delta lists: Max Shower Volume: 675. Each maker states its own sizing rule, if any; read it on the product page.

Source: SteamScape 15kW Steam Generator - Delta

What sizing rule does Delta give for the SteamScape 15kW Steam Generator?

Delta says: For natural stone or marble, multiply by 2.0. For ceramic or porcelain tile, or glass block, multiply by 1.35; Exterior Wall: For one, multiply by 1.1; for two, multiply by 1.2; Ceiling height: For a 9 ft. ceiling, multiply by 1.15; for a 10 ft. ceiling, multiply by 1.3; Note: If there is a skylight or outside window, select the next largest generator.

Source: Delta: steam generator sizing guide

What is the output of the SteamScape 15kW Steam Generator?

Delta lists: Kilowatts: 15kw.

Source: SteamScape 15kW Steam Generator - Delta

What voltage does the SteamScape 15kW Steam Generator run on?

Delta lists: 240V 1ph. Have a licensed electrician confirm your circuit against the installation manual before you buy. Related question: Which steam generators run on a 240 V circuit?

Source: SteamScape 15kW Steam Generator - Delta

What breaker or current does the SteamScape 15kW Steam Generator need?

Delta lists: Breaker Capacity: 80. The installation manual and a licensed electrician have the final word.

Source: SteamScape 15kW Steam Generator - Delta

Does the SteamScape 15kW Steam Generator come with a control?

Delta lists: Required Equipment - 5CH-250, 5CB-550, 5CH-550, and 5CN-550 Control Interface and Steam Head.

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

Does the SteamScape 15kW Steam Generator drain or flush itself?

Delta lists: ½" Capped Drain Line for Optional Auto Drain. Related question: Which steam generators drain or flush themselves?

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

What water and drain connections does the SteamScape 15kW Steam Generator need?

Delta lists: Water Supply - 3/8" Compression Fitting, 120 PSI max; Steam Outlet - 3/4" Brass NPT male thread; Pressure Relief Valve - 3/4" NPT female thread; Drain Outlet - Capped 1/2" Brass NPT male thread. A licensed plumber should confirm them against the installation manual.

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

How big is the SteamScape 15kW Steam Generator?

Delta lists: 17¾" x 7½" x 15½".

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

What warranty does Delta give on the SteamScape 15kW Steam Generator?

Delta lists: Steam Generators – Lifetime limited warranty; Electronic Parts for Steam Bath Generators, Controls, Spa Options and Accessories – two (2) years from the date the product is received by the original consumer purchaser.

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

Is the SteamScape 15kW Steam Generator safety listed?

Delta states: UL/cUL Listed.

Source: Delta: DSP S 5GE SMP12 240 1 Rev B (PDF)

What does the SteamScape 15kW Steam Generator cost on Delta's site?

Delta's own site showed $5,642 (List Price on deltafaucet.com, 29 Sep 2026). That is the maker's price, not a retailer's or Amazon's; prices change, and the seller's page shows the current one. Related question: How much does a steam generator cost?

Source: SteamScape 15kW Steam Generator - Delta

Sources

  1. Delta: DSP S 5GE SMP12 240 1 Rev B (PDF) — Delta
  2. Delta: steam generator sizing guide — Delta
  3. SteamScape 15kW Steam Generator - Delta — Delta