Review · Kegco

Kegco HBK309S-2 homebrew kegerator review

A two-faucet kegerator built for homebrew corny kegs that can double as a fermentation chamber, read from Kegco's pages and the listings.

Our verdict

The Kegco HBK309S-2 is a straightforward way to serve two homebrews on draft from corny kegs and ferment in the same box between batches, as long as you remember it is ball lock only out of the box and an indoor appliance that cools but cannot heat.

The HBK309S-2 is a full-size kegerator set up for homebrew: two faucets, ball lock connections and room inside for up to three 5-gallon Cornelius kegs, per the listing. A digital thermostat sets the temperature in 1-degree steps, and fan-forced cooling spreads the cold through the cabinet. The listing gives a 32–75°F range, so you can dispense near freezing or set it warmer to hold a fermenting bucket.

Two limits matter. It is ball lock only as shipped, so commercial kegs need a separate D-system coupler. And it is a refrigerator: it can keep beer cool, but it cannot warm a fermenter in a cold garage, and Kegco's kit listing says not to use it outdoors.

Taps
2
Kegs
Homebrew (ball lock) kegs
Temp range
Digital, 1° steps; dispense or ferment

Updated November 2026 · Based on maker specs, the manual, the listing and published sources; we did not brew with it

The short version
  • Two faucets, built for ball lock corny kegs; fits up to three 5-gallon kegs or a 6-gallon fermenter, per the listing.
  • Digital control in 1-degree steps, 32–75°F per the listing; fan-forced cooling.
  • Electrical: 115V/60 Hz, 1.7 running amps; 25 × 24 × 33.25 in.; 3 in. clearance all round; indoor use, per Kegco's kit listing.
  • Not for commercial kegs out of the box: you'd need a D-system coupler.
  • Regulator and CO2 tank inclusion differs by listing; tanks ship empty.

This Kegco kegerator review covers the HBK309S-2, Kegco's two-tap stainless homebrew kegerator. Kegging replaces bottling day with filling one keg, and a kegerator keeps that keg cold and on tap. A dedicated unit like this saves you from converting a chest freezer or drilling a fridge door.

We read Kegco's product pages, the listings for the HBK309S-2 and its keg kit (HBK309S-2K) and published brewing sources. We did not install or run one. For more kegging gear, see the kegging and draft hub and the switching to kegs page.

Who it’s for, and who should skip it

Good fit if you…
  • Are moving from bottles to corny kegs and want a ready-made two-tap unit
  • Want to ferment in the same cabinet between serving batches
  • Have an indoor spot with 3 inches of clearance on every side
  • Prefer a digital thermostat to a dial
Skip it if you…
  • Mainly buy commercial Sankey kegs (look at a D-system kegerator)
  • Plan to keep it in an unheated or uninsulated garage that freezes or bakes
  • Need to heat a fermenter, not just cool it
  • Want more than two beers on tap (Kegco's K309SS-3HB has three)

Pros and cons

What stands out
  • Two faucets set up for homebrew ball lock kegs
  • Holds up to three 5-gallon corny kegs, per the listing
  • Digital control in 1-degree steps, °F or °C
  • 32–75°F range lets it double as a fermentation chamber
  • Fan-forced cooling for even temperatures
  • Low running current (1.7 A) on a normal 115V outlet
Keep in mind
  • Ball lock only as shipped; commercial kegs need a D-system coupler
  • Cools only; it can't warm a fermenter
  • Indoor appliance; not for outdoor use
  • What's in the box (regulator, tank, kegs) varies by listing
  • Needs about 3 in. of clearance on all sides

Specs

Taps2
KegsHomebrew (ball lock) kegs
Temp rangeDigital, 1° steps; dispense or ferment

As stated by the maker or seller; confirm on the listing before you buy.

What temperature range does the Kegco HBK309S-2 have?

The listing says the temperature can be set as low as 32°F for serving and as high as 75°F to use the cabinet as a fermentation chamber, adjustable in 1-degree steps with a °F or °C display. Our catalog entry only records "digital, 1° steps", because the base listing's spec fields leave the numbers out; the 32–75°F figure comes from the listing text and Kegco's keg kit listing. A dealer listing adds a maximum ambient temperature of 100°F.

Read the top of that range carefully. A kegerator has a compressor, not a heater. Setting 75°F just means it won't cool until the inside rises above 75°F. In a cold garage in January it can't bring a fermenter up to 66°F. For lager season or a winter garage, add a heat wrap and a controller such as the Inkbird ITC-308; see our ITC-308 review. Kegco's kit listing also says not to use it outdoors.

Specs and what's in the box

Kegco HBK309S-2 at a glance

ItemFigureSource
Faucets2Listing
CouplersBall lock (homebrew)Listing; Kegco
CapacityUp to three 5 gal corny kegs, or a 6 gal bucket or carboyListing
Temperature32–75°F, 1-degree steps, °F/°CListing
CoolingFan-forcedListing
Electrical115V / 60 Hz, 1.7 running ampsHBK309S-2K listing
Size25 in. D × 24 in. W × 33.25 in. HHBK309S-2K listing
Clearance3 in. on all sidesHBK309S-2K listing
UseIndoors onlyHBK309S-2K listing
Warranty1 yearListing

Source: Kegco: 24 in. wide homebrew dual tap stainless digital kegerator

What comes in the box is the most confusing part. Kegco's pages for this family list a two-faucet tower, a dual-gauge regulator and a 5 lb aluminum CO2 tank; a dealer listing marks the regulator and tank as included in one place and optional in another. The keg kit version (HBK309S-2K) says it adds one ball lock keg on its listing, while Kegco's page for the kit mentions two. In every case, tanks ship empty, so you'll need to fill or exchange one locally. Confirm the box contents on the listing before you buy.

Can the Kegco take commercial kegs?

The cabinet is big enough: the keg kit listing says it fits one half barrel, a pony or slim quarter, two sixth barrels or three 5-gallon kegs. The hardware is the problem. The HBK309S-2 is set up with ball lock connections for homebrew corny kegs, and US commercial kegs use a D-system Sankey coupler. To serve a commercial keg you'd add a D-system coupler and matching line. If you mostly buy commercial kegs, a kegerator that ships with a D-system coupler is simpler.

Carbonation, CO2 and safety

Most homebrewers force carbonate in the keg at serving temperature. Around 38–40°F, about 10–11 psi gives roughly 2.4 volumes of CO2 (10.2 psi at 38°F, 11.2 psi at 40°F), a typical level for American ales. The chart below gives the regulator setting for any temperature and carbonation level, and the keg carbonation chart tool adds an altitude correction.

An aluminium CO2 cylinder with a dual-gauge regulator and braided hose
A CO2 cylinder with its regulator.Photo: Kevin B 3, CC BY 2.0, via Wikimedia Commons

Keg pressure (psi, sea level) by beer temperature and target CO2 volumes

Beer temp1.8 vol2.0 vol2.2 vol2.4 vol2.6 vol2.8 vol3.0 vol3.2 vol
32°F 0°C1.63.55.47.39.211.012.914.8
34°F 1.1°C2.34.36.38.210.212.114.116.0
36°F 2.2°C3.15.17.29.211.213.315.317.3
38°F 3.3°C3.96.08.110.212.314.416.518.6
40°F 4.4°C4.76.89.011.213.415.517.719.8
42°F 5.6°C5.57.710.012.214.416.718.921.1
44°F 6.7°C6.38.610.913.215.517.820.122.4
46°F 7.8°C7.19.511.814.216.619.021.323.7
48°F 8.9°C7.910.412.815.317.720.122.625.0
50°F 10°C8.711.313.816.318.821.323.826.3
52°F 11.1°C9.612.214.817.319.922.525.127.6
54°F 12.2°C10.413.115.718.421.123.726.329.0
56°F 13.3°C11.314.016.719.522.224.927.630.3

Formula: PSI = −16.6999 − 0.0101059·T + 0.00116512·T² + 0.173354·T·V + 4.24267·V − 0.0684226·V². Checked against the BYO grid (40°F and 2.4 vol: 11.19 psi by formula, 11.2 psi on the chart). Regulator gauges read relative to local air pressure. BYO notes that Denver needs about 3 psi over the sea-level chart; add roughly 0.5 psi per 1,000 ft. Sources: BYO: Carbonation priming chart; Brewer's Friend: Force carbonation chart; Brewers Association: Draught Beer Quality Manual.

CO2 is an asphyxiation hazard in a closed room. Keep the cylinder upright and secured, always run it through a regulator, keep it away from heat, and ventilate or leave the room if you hear or smell a leak. Never set a regulator above the rating of the kegs or fermenters it feeds.

CO2 cylinders and pressureKeep cylinders upright and secured, and always use a CO2-rated regulator (US CO2 tanks use the CGA 320 valve fitting); never connect a cylinder straight to a keg. Store tanks cool and away from heat. CO2 displaces oxygen and collects low: ventilate, close the tank valve and leave the room if a tank leaks. Never exceed a fermenter’s or keg’s rated pressure.Source: Kegco: Everything you need to know about CO2; OSHA hazard bulletin on CO2
Keg carbonation chart and PSI calculatorFind the PSI for your serving temperature, target CO2 volumes and altitude.

Using it as a fermentation chamber

The listing says the cabinet holds a 6-gallon bucket or carboy. Between serving batches you can set it to your yeast's range and ferment inside it. Measure the beer, not the air: active fermentation runs warmer than the cabinet. A PET pressure fermenter such as the FermZilla can even ferment and serve from the same vessel; see our FermZilla review. The equipment checklist lists the kegs, lines and cleaning gear a first draft setup needs.

Homebrew on draft is easy to over-pour. Many homebrews are stronger than commercial beer, so know the ABV and the standard drinks in each glass. Brewing and drinking are for adults 21 and over.

Know what’s in the glassHomebrew is often stronger than commercial beer. One US standard drink is 14 g of alcohol: 12 oz of 5% beer or 5 oz of 12% wine. Brewing and drinking are for adults 21 and over; never drink and drive.Source: NIAAA: What is a standard drink?
A chest-freezer keezer with three faucets mounted on top
A chest-freezer keezer with three faucets mounted on topPhoto: danoxster, CC BY-SA 2.0, via Flickr

Alternatives worth a look

Two taps, mixed kegs: EdgeStar's dual-tap kegerator lists a digital display and Deep Chill mode and fits half-barrel, slim quarter, corny and sixth-barrel kegs, with a 32–50°F range.

Single tap: EdgeStar's full-size kegerator holds a half barrel or two sixth-barrel or corny kegs, with a 5 lb CO2 cylinder shipped empty; listed range low 30s to mid 40s °F.

For commercial kegs: VEVOR's dual-tap kegerator ships with D-system couplers, an external CO2 bracket and a 32–75.2°F range.

How we reviewed it

We read the maker’s specs, the manual and the current listing, and checked them against published brewing sources (Palmer, BJCP, AHA, BYO) and safety guidance where it applies. We did not brew with, install or lab-test this product. We never show scores, star ratings or prices.

Questions

Is the Kegco HBK309S-2 a good homebrew kegerator?
It suits homebrewers who use ball lock corny kegs: two faucets, room for three kegs and a digital thermostat. It is less suited to commercial kegs or unheated garages.
What temperature range does the Kegco HBK309S-2 have?
The listing gives 32–75°F in 1-degree steps. It only cools, so it can't warm a fermenter in a cold room.
How many kegs fit in a Kegco HBK309S-2?
Up to three 5-gallon Cornelius ball lock kegs, per the listing, or a 6-gallon bucket or carboy for fermenting.
Can a homebrew kegerator take commercial kegs?
The cabinet fits them, but the HBK309S-2 is set up for ball lock kegs. You'd need a D-system coupler for US commercial kegs.
What PSI should I set for kegging homebrew?
About 10–11 psi at 38–40°F gives about 2.4 volumes of CO2. Use the keg carbonation chart for other temperatures and styles.
Does the Kegco come with a CO2 tank?
Kegco's pages for this family list a 5 lb aluminum tank and regulator, but listings differ. Tanks ship empty either way, so check the listing and plan to fill one.

Sources

  1. Kegco: 24 in. wide homebrew dual tap stainless steel digital kegerator
  2. Kegco: 24 in. wide homebrew dual tap kegerator with keg
  3. Kegco: Everything you need to know about CO2
  4. Beverage Factory: Kegco HBK309S-2 digital homebrew kegerator (dealer specs)
  5. Kegco: Everything you need to know about CO2