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Rinnai

Verified customer product ratings, model details, and review feedback.

Fan Convector Vent Free Heater -10K BTU
R

Model: FC510N

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Fan Convector Vent Free Heater -10K BTU

★★★★★
4.1 from 18 ratings

I-Series Condensing 95.9% Combination Natural Gas Boiler with 90,000 BTU Input

  • Input Range 5,500 - 10,000 BTU/hr
  • Ideal supplemental heating solution for room additions, basements, and sunrooms (Heating area varies by geographic region and location of install within the home)
  • Simple installation - Designed to be professionally installed with ease in nearly any space
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CUSTOMER REVIEWS
5 Stars
59%
4 Stars
18%
3 Stars
6%
2 Stars
12%
1 Stars
6%

4.1 from 18 ratings

★★★★★

“Love these heaters. Silent but warm!”

Dblmfl Nov 23, 2021

★★★★★
5.0

Set it and go

“Great heater”

CC Mar 28, 2021

★★★★★
5.0

Well built and user friendly. It does a great job heating my 9 X 20 foot room.

“Unmatched Performance”

AJ Feb 23, 2021

★★★★★
5.0

Unmatched Performance

“Good heater as long as you have no issues. ”

Reno Feb 9, 2021

★★★★★
1.0

I immediately started having issues with my heater. Rinnai insisted on having a plumber troubleshoot which I did. After a months and two service calls by installer and two from gas company Rinnai finally replaced the unit. Problem solved except they now claim I am responsible for all the service calls as they don’t cover that in the warranty. Based on the support I received I would not buy again.

“very quiet and simple to use”

NotBob Feb 4, 2021

★★★★★
4.0

My first impression was how very quiet this space heater is. We have had it for 3-4 months and use it to heat an exercise area in an unfinished basement. With just the touch of a button, the heater is working and takes the chill off in a short time while making very little noise.

“Room heater”

Kristy Jul 15, 2020

★★★★★
5.0

Quiet, lightweight

“Efficient ”

Linda Jul 1, 2020

★★★★★
5.0

Efficient with space and heat. Love it.

“Small but mighty”

Great technology Jun 3, 2020

★★★★★
5.0

This unit is replacing a corn burner in a 3-season room. I was concerned that it might not be able to heat the space, but it does a great job. It heats quickly. It is clean and works as promised.

“Heater is still not working well”

EM Jun 2, 2020

★★★★★
2.0

Redid the kitchen so we replaced heater with a newer model. It is a great heater when it stays on

“I have a small unit it certainly beats the electric heaters. The room is very toasty. Air in the room isn’t dry. Love it I should have installed this years ago. Easy to use. Had to call customer service had a question & it was answered 👍. It was installed 3 months ago. It’s a great product.”

Anonymous Feb 26, 2020

★★★★★
5.0

New Jersey Lady 2019👍

“Customer review”

Anonymous Feb 12, 2020

★★★★★
4.0

“I love these heaters!”

TrueNewMexican Feb 10, 2020

★★★★★
5.0

I’ve got three Rinnai Silent Servants, and they all work beautifully. Quiet, extremely efficient, very low maintenance. Note that I live at 6,000 feet elevation, and I’ve never had a problem with inadequate oxygen. (I’m using the natural gas version.)

“Great heater ”

Snowman Oct 21, 2019

★★★★★
5.0

It’s compact and quite and super efficient. :)

“Customer service is terrible ”

DM Jul 26, 2019

★★★★★
2.0

If you have a problem with a heater that is under warranty, they tell to contact a certified repairman. , no matter how far away they are. This applies if the heater is faulty from day one . They will not exchange it

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