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Electric Hot Tub Manuals

Tips for Plumbing a Redwood Outdoors Electric Hot Tub

Installation of the Electric Heater Kit should be performed by a qualified electrician. Please share these manuals with your electrician:

HYDROQUIP HeatMax Spa Heater

COATES Spa Heater

AS-TC 94 Timer / Control Unit

The primary components of our electric hot tub system (the heater and circulation pump) are individually UL listed. However, the Redwood Outdoors electric hot tub heating system is not UL listed as a complete kit. You should review state and local laws and building codes prior to purchasing, as your locality may require that pool and hot tub equipment be UL listed as a complete unit. 

Note on Plumbing Design

Our electric units have two different types of plumbing system. One type is the "Top & Bottom Suction" which has 1 bottom suction (i.e., the pipe that sucks water from the tub into heating system) and 1 top "skimmer" suction. The other type is the "Double Bottom Suction" which has 2 bottom suctions.

When you receive your hot tub, first identify which plumbing system you have so you can plumb your system correctly. You must follow the steps and use the assembly manual for your specific plumbing system. Assembly manuals for your plumbing system are on the pages below.

Top & bottom suction units have 2 staves with pre-cut holes (1 return stave with a hole cut in the top, 1 suction stave with 2 holes). 

If you have a top & bottom suction unit, please follow the instructions and use the manual on this page.

Double bottom suction units have 3 staves with pre-cut holes (1 return stave with a hole cut in the top, 2 suction staves with holes cut in the bottom).

If you have a double bottom suction unit, please follow the instruction and use the manual on this page.