Welcome to our Fujitsu RLS3 Vs Daikin Quaternity and Daikin LV minisplit heat pump show down post.
Other posts in this series if you want to check them out:
One of the most popular questions we are asked by homeowners is: “which ductless heat pump is the best?”
It’s a difficult question to give a definitive answer to, but we can compare the specifications and stats for each model. In this post, that is exactly what we’re going to do.
We are going to compare the most important specs between the Daikin 12,000 BTU LV, the Quaternity models and the Fujitsu RLS3, including:
- Heating capacity
- Operating temperatures
- HSPF (heating seasonal performance factor)
For this comparison we will be excluding brand specific features, as these will be more important for some homeowners and not for others.
Lets get started.
Nominal heating is the amount of heat a unit produces at approximately 8°C. This number matters because the higher nominal heating value, the more heat that is produced at lower temperatures.
Fujitsu RLS3: 16,000 BTU
Daikin Quaternity: 16,000 BTU
Daikin LV: 14,400 BTU
The Fujitsu RLS3 and Daikin Quaternity tie for this spec.
There are two important components to operating temperature. First, how cold does a system operate and second, how much heat does the machine produce at that temperature.
This is important because, lower operating temperatures and higher heating values at those lower temperatures means you will not have to turn on your backup heating source very often, if at all.
Fujitsu RLS3: Operates down to -21° C and produces 15,500 BTU of heat at -21° C
Daikin Quaternity: Operates down to -20° C and produces 10,200 BTU of heat at -10° C
Daikin LV: Operates down to -15° C and produces 6,430 BTU of heat at -15° C
The Fujitsu wins this one for offering not only the lowest rated operating temperature, but also because of the amount of heat produced at that temperature.
Heating Seasonal Performance Factor
The Heating Seasonal Performance Factor (aka. HSPF) is a standardized rating to compare the efficiency of one heat pump to another. We’ve done a post and video on HSPF, which you can read and watch here for more information.
The short story is, the higher the HSPF rating the more efficient a heat pump is. In other words, a heat pump with an HSPF of 12.0 will cost less to run than a heat pump with an HSPF of 9.0.
Fujitsu RLS3: has an HSPF of 14.0
Daikin Quaternity: has an HSPF of 10.6
Daikin LV: has an HSPF of 12.5
The Fujitsu RLS3 wins this category as well.
Heat pump warranties can be a bit different than some other consumer and home products you might be used to.
There can be three components to a heat pump warranty:
- Compressor warranty (this is the main part of the outdoor unit)
- Parts warranty (this includes the indoor evaporator head)
- Labour warranty
Fujitsu RLS3: 10 year parts and 10 year labour warranty
Daikin Quaternity and LV: 12 year parts and 6 year labour
The winner here is going to depend on personal preference. Does a longer parts warranty make you feel more comfortable? Or would you prefer the 10 year parts and labour warranty from Fujitsu.
We’ll give each brand a point as both have above average warranties for the industry.
In this mini split heat pump showdown the Fujitsu RLS3 wins out over the Daikin Quaternity and LV series.
Just to recap:
- The Fujitsu RL3 and Daikin Quaternity have a nominal heat rating of 16,000 BTU’s
- At -8°C the Fujitsu produces 17,900 BTU’s of heat while the Daikin Quaternity produces 10,400 and the LV model produces 10,100
- At -21°C the Fujitsu is still producing 15,000 BTU’s of heat while the Daikin Quaternity drops off to 10,400 at -10°C and the LV model 6,430 at -15°C
- The Fujitsu has an HSPF of 14 (the highest on the market) while the Daikin LV is 12.5 and the Quaternity is 10.6
- Finally the warranty for the Fujitsu is 10 years parts and labour versus Daikin’s 12 year parts and 6 years labour
Overall the Fujitsu simply produces more heat and lower operating temperatures than the Daikin. The fujitsu also has a higher HSPF rating, which means it’s more efficient. While the warranty is solid on both models we have to give the win to Fujitsu.
How can you know which heat pump is best for your home?
Give us a call or submit the form on the right of this page to arrange an in-home heat pump assessment with one of our Energy Specialists. They will review your homes layout, assess your heating, cooling and comfort requirements then provide a couple of solutions for heat pump systems in your home.
We look forward to hearing from you!