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Replacing 6kw heater with 4kw

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Hottubguy:

--- Quote from: castletonia on October 14, 2019, 04:39:28 pm ---Only difference is it will heat slower.

--- End quote ---

Yep. Must be a single pump tiger river tub with circ pump.

Tman122:
It won't make any difference in longevity or energy consumption. But it will heat slower.

bud16415:
Heating slower is a relative thing as if the tub is hot when you get in it and it stays hot while you are in it that’s all that is needed.

A larger heater will indeed last longer as it will be on for less hours and most things have a life expectance based around hours of usage. If the 6k say were to last 6 years the 4k would last 4 years. Factor the life/cost out along with the quality of the cheaper aftermarket unit and the cost savings might not be there.

Now if you are flipping a house and just want it running for the flip that’s a different factor. Like a used car dealer putting retreads on his cars he’s selling.

SerjicalStrike:
The 4kw element will be fine.  It is typically titanium.  Bad water chemistry affects heating element lifespans way more than run time. 

Tman122:

--- Quote from: bud16415 on October 15, 2019, 08:56:07 am ---Heating slower is a relative thing as if the tub is hot when you get in it and it stays hot while you are in it that’s all that is needed.

A larger heater will indeed last longer as it will be on for less hours and most things have a life expectance based around hours of usage. If the 6k say were to last 6 years the 4k would last 4 years. Factor the life/cost out along with the quality of the cheaper aftermarket unit and the cost savings might not be there.

Now if you are flipping a house and just want it running for the flip that’s a different factor. Like a used car dealer putting retreads on his cars he’s selling.

--- End quote ---

Because of the lower wattage to run the 4K versus the 6k the life expectancy may be a wash and not worth considering (6K burns hotter less time) (4K burns cooler for longer) toss that up.

Agreed on the tub in the house purchase. Put the lower wattage cheaper heater in and say nothing. Tell them you just put a heater in it and it works perfect.

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