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Model #HWT-F1000S

Store SO SKU #1000114644

Hot Water Tank and Filtration System for Hot Water Dispensers

  • For use with InSinkErator hot water dispensers
  • Adjustable temperature from 160-210 degrees Fahrenheit
  • 3-year In-Home limited warranty service
  • See More Details

Frequently Bought Together


Product Overview

The redesigned stainless steel hot water tank (HWT-F1000S), which includes the new water filtration system (F-1000S), will feature a new high-end appearance. It is re-engineered for longer life and improved performance with a 2/3 Gal. capacity tank, tool-free connections to ease installation, and dry-start protection for peace of mind. This tank provides up to 60 cups per hour of 200°F near-boiling, filtered water.
  • Includes hot water tank and F-1000S filtration system (head bracket, F-1000 replacement filter, 2-polyethylene tubes, quick-connect fitting, two mounting screws, 1/4 in. compression fittings)
  • Hot water tank with stainless-steel construction for longer life (UL certified)
  • Easy-to-adjust temperature control (Adjustable from 160 - 210°F)
  • Compact 2/3 Gal. holding capacity
  • Designed for use with all InSinkErator water dispensers (except model HOT-1)
  • 115-Volt, 750-Watt, 6.25 Amp
  • We come to you 3-year in-home limited warranty on tank; 1-year on filtration system (Excludes replacement filter cartridges)
  • F-1000 filter reduces particulates, chlorine taste and odor (NSF 42 certified)
  • Recommended 6-month filter replacement for optimal performance
  • Filter bracket head compatible with only F-1000 and F-2000 replacement filters
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Fitting size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Application Type
Bacteria Reduction (%)
Chlorine reduction (%)
Contaminants Filtered
Copper Reduction (%)
Ease of Install
Drilling Required
Twist and lock design
Filtration Method
Carbon Spun Fiber
Fitting style
Quick connect
Fluoride Reduction (%)
House Hold Size
3-4 people
Hardware,Installation kit
Iron Reduction (%)
Lead reduction (%)
Maximum feed water pressure (psi)
Maximum feed water temperature (F)
Maximum filtered water flow (gallons per min.)
Minimum feed water pressure (psi)
Minimum feed water temperature (F)
Number of filters included
Number of Stages
1 Stage
Pack Size
Product Weight (lb.)
Replacement Filter Type
Under Sink Replacement Filters
Water Filtration System Type
Under Sink

Warranty / Certifications

Certifications and Listings
NSF Listed,UL Listed
Manufacturer Warranty
3-Year In-Home Limited Warranty on tank; 1-Year on filtration system (excludes replacement filter cartridges)

Questions & Answers


It can provide home temprature water as well? Do i need faucet with hot and cold?

Asked by Mike April 20, 2021

You connect it to cold water. Then it provides hot water at the temperature that you have it set to. The manual should tell you the temperature range it can be set to. Typically it is set just under boiling.

does the F-201R filter reduce PFAS?

Asked by janice March 21, 2021

Hi Janice, we cannot make any claims that our filters remove or reduce PFAS. Here’s the product specs for your reference - https://insinkerator.emerson.com/documents/f-201r-filter-replacement-specifications-en-us-5929884.pdf.

I bought the Insinkerator Indulge 2 handle instant hot and cold water dispenser and this tank to ...

Asked by Kar October 7, 2020

Yes, you can hook the output of the filter to provide filtered water through both the hot and cold taps.

How long is the power cord?

Asked by Nick July 28, 2020

Cord is about 24" more or less.

Does the model. HWT-F1000S come with an electrical cord? If not, is there a short cord accessory?

Asked by Paul66 March 12, 2020

Yes it did

I installed this system about a year ago, under my kitchen sink, with a hot/cold water dispenser ...

Asked by Dan February 26, 2020

Since the only difference in the hot and cold water from the dispensers and the sink is the hot water tank in the Insinkerator Hot Water System, I suspect that the filter was not completely flushed, when you put it in service and that some of the fines from the new filter ended up in the tank. Try flushing a lot of water through the hot water tank. If the tank has a drain on it, try draining and flushing it (with the heating element off), or disconnect and remove the tank to flush it out.

I have a different model currently and it says it goes to 200 F but it doesn't quite get that hig...

Asked by JAC December 10, 2019

Hi JAC, this instant hot water dispenser is factory preset at near-boiling 200˚F. The temperature is adjustable from 160˚F to 210˚F.

Can i hook it up with Reverse Osmosis water filter system?

Asked by Victoria October 25, 2019

Yes. I connected an RO system (with a small tank) between the insinkerator filter and the insinkerator hot water heater/dispensor. Just confirm you have enough incoming water pressure to drive the filter and the RO system.


Asked by LARRY August 20, 2019

It sounds like the temperature setting is too high and your water supply is constricted. You are boiling off what little water is in the tank. You should be able to hold the dispenser valve open and eventually get running water that isn’t super heated. If not, your supply is restricted.

I want to use my Everpure filtration along with my new In Sinkerator hot water tank. The tank I p...

Asked by lyn March 11, 2019

I am not sure which model the H3300 is, but I think I have a similar system. I did not like the style of hot water dispenser that came with the system; so I purchased one of the contemporary faucets. These things, in my mind, are ridiculously expensive; however, they match the décor in my kitchen and they have available faucets with both hot and tap water dispensing. Plumbing in the faucet was easy - install the filter, tee the tap water line out of the filter, run one of the lines to the hot water heater then to one side of the faucet dispenser and then run the other side of the tee to the tap water side of the dispenser. I am sure you can think of several ways you can plumb this is. The Insinkerator folks included some soft plastic tubing, but it was not enough for my installation. I had to purchase additional tubing and snap-on tee for the split. While I was looking for the additional parts, I ran across an on-off valve that I installed before the filter. That way, when I leave for a period of time, I can turn the entire system off and have no worries about the plastic lines bursting. The type of soft plastic tubing is very easy to work with - cut the tubing with a knife or scissors and the fittings just snap together. In all, installation took about an hour (Plus the trip to HD).

Hot Water Tank and Filtration System for Hot Water Dispensers - page 2

Customer Reviews

  • 4.4
    out of 800 reviews
  • 91% recommend this product
Filter by:
Showing 1-10 of 800 reviews
Quality Product
I installed the Insinkerator air switch with this model. Easy install and found the unit to be very quite which makes it seem a top end unit. My wife loves how quiet it is compared to our older unit. I liked the ease of installation. One tip, when locking the top ring to install to the sink, use a large pair of channel locks to hold the disposal sink ring from turning while using the tool included with this model to lock the ring on the disposal. The lock must go farther than I originally thought. Everything is stated in the instructions but for a novice, you must lock the ring over a small like bump in the other ring. It was super easy once I used a larger channel locks to keep the entire disposal from moving in a circle. A plumber would obviously already know this.... not me... LOL
by Hotdog2121
I have owned several of these over 20 plus years. The dispenser is an excellent addition to the ...
I have owned several of these over 20 plus years. The dispenser is an excellent addition to the kitchen. Over time, they do wear out. However, still a good value.
by HomeDepotCustomer
The Insinkerator is a replacement for another brand of instant hot water tank and dispensor. A n...
The Insinkerator is a replacement for another brand of instant hot water tank and dispensor. A number of years back we had an Insinkerator and loved it. Went with a different brand because we liked there dispenser/faucet and it matched the kitchen faucet better. I regretted that decision. When the other brand's tank started leaking, I replaced everything with Insinkerator (tank, filter, and dispenser). Better water temp control, larger capacity, faster heating on refill, quieter, and smoother operation of faucet. We use this product every day--love it for hot drinks and starting any cooking with hot water. Love the 3 yr warranty of Insinkerator
This hot water tank/filter and insinkerator faucet feature are exactly what I've been looking for...
This hot water tank/filter and insinkerator faucet feature are exactly what I've been looking for virtually all of my life. To be able to make instant tea or instantly blanch asparagus or add hot water to anything else I could think of to reduce my cook time is what I've always wanted as a tool in my kitchen. I couldn't be more excited to find a new use for it almost everyday.
by mardigras252
I've only had this particular unit for a few weeks, but I had the previous model for 5 years and ...
I've only had this particular unit for a few weeks, but I had the previous model for 5 years and it worked great until about a month ago, then wouldn't heat the water above 160 anymore. Nowadays, 5 years is pretty good for these types of appliances. My only disappointment so far with the new on is that I had to replace the water connectors because the newer model uses a different size. I was hoping for "plug and play."
by tracya
Many benifits
First introduced to this InsinkEator at work. And with over 300 employees this item was well used. I was surprised to see how hot water was coming out. Super hot. . each time it was used. I told my wife about it, as we used up a lot of water from sink to get hot water. Her reply was as soon as I get my kitchen redone. Well after almost a year ,out kitchen was done. We had it installed. Woohoo! .Our grandkids like it. our 17 year old made tea. and smiled all the while doing it. Waiting to have rest of family over to show it off.
by Bigbob1
Great Product, Minor Difficulties in Installation
We just moved to a new home, and installation of an Insinkerator Instant Hot Water and Filtration System was one of the first things we did, even before hooking up the washer and dryer! The connections from the Insinkerator Faucet to the tank and the filter are easy to make and clearly described in the instructions. The only hang-up is step 6, which simply states that you are to make the connection to the cold water supply. Knowing that there are probably many variations on the water supply in a home, it is understandable that Insinkerator is nor more explicit. However, getting the right fittings (a "T" to connect to the cold water shutoff valve, a separate shut-off valve for the Insinkerator system, and additional 1/4" compression fittings for plastic tubing that are not provided) required trips to two hardware stores to understand and obtain what was required. We had luck with a small mom and pop plumbing store, where we got personal help, versus a disappointing experience with a big box store on this hook up issue. The Insinkerator Instant Hot Water and Filtration System is a great addition to the kitchen, as water from the tap can be used to make hot tea, iced tea, or any beverage requiring hot water, and we use it daily for this. We also got the faucet that provided cold filtered water, which is a great convenience and improvement over the city water. Be sure and buy an Insinkerator faucet, as faucets from other manufacturers are not compatible with the Insinkerator tank connections. Our experience has been that Insinkerator stands behind their warranty fully, and will provide a discount, if an out-of-warranty system fails and needs to be replaced.
by Kandace
1 person found this helpful
Cant do without this… seriously!
I have had this dispenser now since my last kitchen renovation, the lever stopped working after the warrantee expired , but they sent me a new one anyway for free. It is something that I must have in my new custom build, so I am buying it again for the second time with no reservations.You really have to own one to understand how many times you use it for tea. coffee, hot cereal, sauces etc. It is an indispensable dispenser. LOL
by Abex77
1 person found this helpful
Indespensible In My Kitchen Sink
What I do know is when my old InSinkErator stopped working correctly, I immediately started the process of acquiring a new unit. Installing anything when upside down under the sink is no picnic but, it is relatively easy to install. The Company does treat you fairly when there is an issue with one of their products.
by DougP
Great Instant Hot Water system
Although at first I was disappointed with InSinkErator due to the old unit developing a leak (fairly common from what I saw researching on the Internet), I was pleasantly surprised with the ease of retro-fitting the new unit. Many times a replacement appliance involves new mounting, hoses, fittings, etc. and working under the sink is not on my list of favorite pastimes. The instructions clearly outlined the replacement procedure which was a snap - the new unit dropped right into the old mounting screws and the hoses connected right up by hand. After completing the installation the unit heats up water quickly and you are ready to go. The only thing I did not realize was that the old filtration system works with the new unit, so there was no need to buy the new filtration. I saved that for when my old replacement filters are obsolete!
by rgbtx
3 people found this helpful
Showing 1-10 of 800 reviews