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Amerec AK9

A steam generator from Amerec, rated by the maker for 150–300 cu ft. Every figure below is Amerec's own, linked to where it is published. Amerec's published list price: $3,620 (steam builder on amerec.com, 29 Sep 2026).

See it at Amerec
Specifications published by Amerec (12)
Heater output
Watts: 9000 (240 V); 9000 (208 V)Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Room size the maker rates it for
Steam Room Cu Ft: Min 150, Max 300Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Maker's sizing rule
For rooms made of natural stone, multiply the cubic volume by 1.75 (stone requires more power to heat)Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Voltage
240 and 208 volt models can be wired in the field for 1 or 3 phase power.Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Breaker / current
240 V: 1 Phase Amps 38, Breaker 50; 3 Phase Amps 22, Breaker 30. 208 V: 1 Phase Amps 43, Breaker 60; 3 Phase Amps 25, Breaker 40Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Dimensions
16-1/2" x 6-1/4" x 15"Amerec: residential steam bath generator 100
Water and drain connections
Water Inlet – 3/8” NPT; Pressure Relief Valve – 3/4” NPT; Steam Outlet – 1/2” NPT; Drain Outlet – 3/4” NPTAmerec: Amerec AK Steam Generator with K2 and K3 (PDF)
Control included
1 Control Required, additional may be connected. Compatible with the K2, K3, KT3, K4 controls.Amerec: residential steam bath generator 100
Drain and flush
Amerec’s ADK auto drain option is highly recommended to automatically drain and flush the generator after every steam bath; If you do not buy the auto drain, your tank will need to be flushed monthly, or more often, depending on local water conditionsAmerec: faq
Safety listing
ETL Listed for USA and CanadaAmerec: residential steam bath generator 100
Warranty
Limited Lifetime Warranty; all component parts for five years from the date of installationAmerec: warranty
Price on the maker's site
$3,620 (steam builder on amerec.com, 29 Sep 2026)Amerec: steam builder

As published by Amerec, read on 2026-09-29. Makers revise their products; check Amerec'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. Amerec lists: 240 and 208 volt models can be wired in the field for 1 or 3 phase power. A licensed electrician should confirm your circuit against the installation manual before you buy.

If you are looking for more

Compare it with

AK9 vs MS400R

Side by side with the Mr. Steam MS400R. Both are steam generators whose stated room-size ratings overlap, read before each maker's own sizing rule.

AK9 vs MSSUPER1R

Side by side with the Mr. Steam MSSUPER1R. These steam generators carry room-size ratings that overlap, as their makers state them before each maker's own sizing rule.

Other steam generators

Amerec AK4.5

Amerec · steam generator · 4.5 kW · rated by the maker for 60–90 cu ft

Amerec AK6

Amerec · steam generator · 6 kW · rated by the maker for 80–150 cu ft

Amerec AK7.5

Amerec · steam generator · 7.5 kW · rated by the maker for 100–200 cu ft

Amerec AK11

Amerec · steam generator · 11 kW · rated by the maker for 200–400 cu ft

Amerec AK14

Amerec · steam generator · 14 kW · rated by the maker for 350–550 cu ft

Mr. Steam MS90R

Mr. Steam · steam generator · 5 kW · rated by the maker for up to 71 cu ft

AK9: questions answered from Amerec's specification

What size of steam room is the AK9 rated for?

Amerec lists: Steam Room Cu Ft: Min 150, Max 300. Each maker states its own sizing rule, if any; read it on the product page. Related question: Which steam generators are rated for a 200 cubic foot room?

Source: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

What sizing rule does Amerec give for the AK9?

Amerec says: For rooms made of natural stone, multiply the cubic volume by 1.75 (stone requires more power to heat).

Source: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

What is the output of the AK9?

Amerec lists: Watts: 9000 (240 V); 9000 (208 V).

Source: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

What voltage does the AK9 run on?

Amerec lists: 240 and 208 volt models can be wired in the field for 1 or 3 phase power. 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: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

What breaker or current does the AK9 need?

Amerec lists: 240 V: 1 Phase Amps 38, Breaker 50; 3 Phase Amps 22, Breaker 30. 208 V: 1 Phase Amps 43, Breaker 60; 3 Phase Amps 25, Breaker 40. The installation manual and a licensed electrician have the final word.

Source: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

Does the AK9 come with a control?

Amerec lists: 1 Control Required, additional may be connected. Compatible with the K2, K3, KT3, K4 controls.

Source: Amerec: residential steam bath generator 100

Does the AK9 drain or flush itself?

Amerec lists: Amerec’s ADK auto drain option is highly recommended to automatically drain and flush the generator after every steam bath; If you do not buy the auto drain, your tank will need to be flushed monthly, or more often, depending on local water conditions. Related question: Which steam generators drain or flush themselves?

Source: Amerec: faq

What water and drain connections does the AK9 need?

Amerec lists: Water Inlet – 3/8” NPT; Pressure Relief Valve – 3/4” NPT; Steam Outlet – 1/2” NPT; Drain Outlet – 3/4” NPT. A licensed plumber should confirm them against the installation manual.

Source: Amerec: Amerec AK Steam Generator with K2 and K3 (PDF)

How big is the AK9?

Amerec lists: 16-1/2" x 6-1/4" x 15".

Source: Amerec: residential steam bath generator 100

What warranty does Amerec give on the AK9?

Amerec lists: Limited Lifetime Warranty; all component parts for five years from the date of installation.

Source: Amerec: warranty

Is the AK9 safety listed?

Amerec states: ETL Listed for USA and Canada.

Source: Amerec: residential steam bath generator 100

What does the AK9 cost on Amerec's site?

Amerec's own site showed $3,620 (steam builder on amerec.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: Amerec: steam builder

More from Amerec: all Amerec products on Saunakivi.

Sources

  1. Amerec: steam builder — Amerec
  2. Amerec: warranty — Amerec
  3. Amerec: Amerec AK Steam Generator with K2 and K3 (PDF) — Amerec
  4. Amerec: residential steam bath generator 100 — Amerec
  5. Amerec: faq — Amerec