Best Lab Heat Blocks of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 7, 2026

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Lab heat blocks are essential tools used in scientific and medical laboratories for maintaining precise and consistent temperatures during various experimental procedures. These compact devices are designed to accommodate multiple sample tubes or vials simultaneously, ensuring uniform heating or cooling across all samples. With adjustable temperature settings and rapid heat-up times, lab heat blocks offer researchers and technicians the convenience and accuracy required for experiments involving DNA amplification, enzyme reactions, protein denaturation, and many other applications. Their compact size, user-friendly interface, and reliable performance make lab heat blocks an indispensable asset in any laboratory setting.

At a Glance: Our Top Picks

ONiLAB Mini Dry Bath Incubator Cover #TOP 1
ONiLAB Mini Dry Bath Incubator
ftb score rating icon 9.8
Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well Cover #TOP 2
Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well
ftb score rating icon 9.7
ONiLAB HB120-S Cover #TOP 3
ONiLAB HB120-S
ftb score rating icon 9.5

Top 10 Lab Heat Blocks

#TOP 1

ONiLAB Mini Dry Bath Incubator

Mini H100
ONiLAB Mini Dry Bath Incubator Cover
ONiLAB Mini Dry Bath Incubator,15 x1.5ml Aluminium Heating Block, LCD Display, Timer Control,UP to 100C, 0.5C Accuracy,9 Programs in Memory, Rapid Calibration Function…

The ONiLAB Mini Incubator is a versatile and user-friendly lab heat block. With a temperature range of up to 100°C and an accuracy of ±0.5°C, you can trust this incubator to deliver precise and consistent heating for your experiments. It comes with a included aluminium heating block that securely holds 15 x 1.5ml test tubes, ensuring uniform heating. The programmable feature allows you to store 9 sets of temperature and time programs for quick and easy selection. The LCD display and intuitive controls make it effortless to operate, with a time range of 0-999 minutes or seconds. Safety is also a priority, as this incubator has overheating protection and conforms to international safety standards. The ONiLAB Mini Incubator is a reliable and efficient tool for your lab heating needs.

What We Like
Wide temperature range
Precise and uniform heating
Programmable with 9 sets of programs
#TOP 2

Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well

CB96
Blue
96-Well
Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well Cover
Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well for 0.2 mL Tubes, Strips or 96-Well Plates, Blue

The Argos Technologies CB96 Polarsafe Aluminum Cooling Block 96-Well, also known as the Argos Cooling Block, is a versatile lab heat block designed to accommodate 0.2 mL tubes, strips, or 96-well plates. This cooling block is made of durable aluminum and comes in a striking blue color. With a compact size of 14.478 L X 8.382 W X 3.048 H (Cm) and a lightweight package weight of 0.317 kilograms, it is convenient to use and carry. The cooling block is manufactured in China. It provides an efficient cooling solution for various lab applications, ensuring that your samples stay at the desired temperature. The Argos Cooling Block is an essential tool for any lab that requires precise temperature control and reliable cooling capabilities.

What We Like
Versatile
Durable aluminum
Compact size
#TOP 3

ONiLAB HB120-S

HB120-S
ONiLAB HB120-S Cover
ONiLAB Scientific Dry Bath Incubator,40 x1.5ml Aluminium Heating Block, LED Display, Timer Control, Temperature 15°C to 120°C, ± 0.5°C Accuracy (HB120-S)

The ONiLAB HB120-S Scientific Dry Bath Incubator is a versatile and reliable lab heat block. With a wide temperature range of up to 120°C and an accuracy of ±0.5°C, this incubator provides precise temperature control for various applications. The LED display shows the temperature and timer, allowing you to easily monitor and adjust settings. The included 40x1.5mL aluminium heating block is perfect for conical tubes. The incubator also features overheating protection for safety. Whether you need it for sample preparation, enzyme preservation, DNA amplification, or gel degeneration, the ONiLAB HB120-S is an ideal choice. With its 1-year warranty and adherence to international safety standards, you can trust in its quality and performance.

What We Like
Wide temperature range
Precise temperature control
LED display with timer
#TOP 4

Cold Block for 96-Well Plates by Sergi Lab Supplies

Cold Block for 96-Well Plates by Sergi Lab Supplies Cover
Cold Block for 96-Well Plates (Current)

The Sergi Cold Block is designed to maintain low temperatures for your experiments, ensuring your reactions stay cold throughout the process. It accommodates various types of 96-well plates, whether skirted, semi-skirted, or unskirted, providing versatility for your lab needs. Additionally, the block fits individual PCR tubes and stripes ranging from 100 to 250 microliters, making it ideal for diverse applications. With a standardized footprint of 127.76 x 85.48 mm, it is compatible with most pipetting robots, enhancing efficiency and convenience in your workflow.

What We Like
Maintains low temperatures
Fits various 96-well plates
Compatible with PCR tubes
Standardized robot footprint
#TOP 5

Prime Metal Lab Heat Block

Prime Metal and Scientific
Prime Metal Lab Heat Block Cover
Lab Heat Block - Aluminum Reaction Block for Heat/Stir Plates - Holds 25-mL Round-Bottom Flasks, Scintillation Vials, 2-Dram Vials, & NMR Tubes – Anodized Aluminum, Blue - Fits 135 mm Round Plate Tops

The Prime Metal Heat Block is a versatile tool designed to accommodate various glassware types commonly used in laboratories. You can use it to heat 25 mL round-bottom flasks, scintillation vials, and NMR tubes, eliminating the need for messy oil baths. This heat block fits perfectly on 135 mm hot plate stirrers and includes slots for temperature probes, ensuring accurate readings. Additionally, it can be chilled in a refrigerator or freezer, allowing it to double as a cooling block. Its durable aluminum construction ensures even heat distribution, enhancing your experimental results.

What We Like
Multipurpose glassware compatibility
Eliminates oil baths
Durable aluminum construction
Even heat distribution
Cooling block capability
#TOP 6

4E's USA TC0401001-74 Aluminum Dry Bath Incubator Block

TC0401001-74
4x35mm
4E's USA TC0401001-74 Aluminum Dry Bath Incubator Block Cover
4E's USA Dry Bath Incubator Heat Block - Universal Aluminum Block for Round Tubes 4 x 35mm, Slot Size ⌀35mm x 47.6mm, Model: TC0401001-74

The 4E's USA Aluminum Heat Block is designed to provide reliable and efficient heating for your lab samples. Made from high-quality aluminum, it offers strong durability, so you can count on it for long-term use. It comes in different sizes to fit various sample tubes, giving you flexibility in your experiments. The block ensures close contact with your samples, which helps heat them evenly and accurately. This means you get precise temperature control, making your lab work more consistent and trustworthy. Whether you’re conducting sensitive experiments or routine tasks, this heat block helps maintain the right conditions every time.

What We Like
Durable aluminum build
Multiple size options
Efficient heat transfer
Precise temperature control
#TOP 7

Sergi Lab Cold Block for Deep Well 96 Plates

Anodized red
Sergi Lab Cold Block for Deep Well 96 Plates Cover
Cold Block for deep Well 96 Wells Plates

The Sergi Lab Cold Block is designed to fit deep well 96-well plates, making it a handy tool for your lab work. It works seamlessly with the Viaflo 96 pipetting robot, so you can automate your liquid handling without worrying about plate compatibility. The cold block has two parts: a lower section that mimics the plate's bottom surface to keep samples chilled evenly, and an upper cover that protects the plate sides from warming up. Before starting your experiment, you can pre-chill the block in a fridge or freezer, ensuring your samples stay cold throughout your work. This setup helps maintain sample integrity and improves your workflow efficiency.

What We Like
Fits deep well 96-well plates
Compatible with Viaflo 96 robot
Two-part design for better cooling
Pre-chillable for sample preservation
#TOP 8

JOANLAB Mini Lab Dry Bath Incubator Heater 1.5mlx15

MDB100
Mini Type
JOANLAB Mini Lab Dry Bath Incubator Heater 1.5mlx15 Cover
JOANLAB Mini Lab Dry Bath Incubator Digital Laboratory Thermostatic Heater with 1.5ml x 15 Heating Block Programmable Timing Control (Single Heating Function)

The JOANLAB Dry Bath Heater offers precise temperature control with a calibration feature that keeps temperature changes within ±0.5°C, ensuring your experiments stay accurate. You can easily set temperatures from room temperature plus 5°C up to 100°C, giving you flexibility for different lab needs. It also allows you to save up to nine different programs with specific times and temperatures, so you don’t have to reset settings repeatedly during multiple tests. Safety is a priority with built-in over-temperature protection and a failure alarm system that alerts you with a buzzer and error code, helping you avoid costly mistakes.

What We Like
Accurate temperature control
Programmable multiple settings
Over-temperature protection
Failure detection alarm
#TOP 9

4E's USA Aluminum Dry Bath Incubator Block TC0401001-54

Conical-Block
12 x 15ml
4E's USA Aluminum Dry Bath Incubator Block TC0401001-54 Cover
4E's USA Dry Bath Incubator Block - Universal Aluminum Block for Conical Tubes 12 x 15ml, Slot Size ⌀17.1mm x 44.5mm Model:TC0401001-54

The 4E's USA Dry Bath Block is made from high-quality aluminum, providing you with a durable and long-lasting tool for your lab work. Its design ensures excellent heat conduction, so your samples get heated evenly and efficiently. With various size options available, you can choose the perfect fit for different sample tubes, making your work more flexible. This block is especially useful for keeping precise temperatures, helping you maintain consistent conditions for your experiments and get reliable results every time.

What We Like
Durable aluminum construction
Efficient heat transfer
Multiple size options
Precise temperature control
#TOP 10

MUHWA Aluminum Cooling Block for 1.5ml Tubes

MHALB40
MUHWA Aluminum Cooling Block for 1.5ml Tubes Cover
MUHWA 40 Well Aluminum Cooling Block for 1.5ml Micro-Tubes, 5 x 8 Array, Pack of One

The MUHWA Aluminum Cooling Block is designed to hold 40 microcentrifuge tubes, making it ideal for lab work that requires cooling or temperature control of small samples. Made from durable aluminum, it ensures efficient heat conduction to keep your samples at the desired temperature. The block measures 141mm by 95.5mm by 25mm, providing a compact yet spacious area for your tubes. Each hole is perfectly sized at 11mm wide and 21mm deep, fitting standard 1.5ml centrifuge tubes snugly, so you can work with confidence knowing your samples are secure and evenly cooled.

What We Like
Durable aluminum material
Holds 40 tubes
Compact dimensions
Fits standard 1.5ml tubes
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the principle of laboratory dry bath?

A laboratory dry bath is used for various purposes in molecular biology, biochemistry, genetics, and other fields. It can thaw, boil, incubate, and warm samples. Modern dry baths are equipped with microprocessors and digital displays, making it easy to set and confirm temperatures.

2. Should you put water in a heat block?

No, you should not put water in a heat block. It is important to avoid immersing the heat block in water or any cleaning solution. Additionally, do not attempt to open the enclosure and use the appropriate power cord for the region to reduce the risk of electrical shock.

3. Why are water baths better than heat blocks?

Water baths are preferable to heat blocks for several reasons. Firstly, water is more efficient at transferring heat to samples compared to air, resulting in a faster and more consistent heating rate. Additionally, water baths promote better heat distribution within the sample, ensuring uniform heating.

4. Why use water bath instead of direct heating?

Using a water bath instead of direct heating methods like a Bunsen burner or hot plate offers several advantages. Indirect heating in a water bath ensures uniform heating throughout the reaction mixture, minimizing the risk of fire hazards. It provides a safer and more controlled environment for heating samples.

Editor's Notes

During our lab heat block research, we found 24 lab heat block products and shortlisted 10 quality products. We collected and analyzed 3,364 customer reviews through our big data system to write the lab heat blocks list. We found that most customers choose lab heat blocks with an average price of $119.28.

The lab heat blocks are available for purchase. We have researched hundreds of brands and picked the top brands of lab heat blocks, including ONiLAB, Argos Technologies, Sergi Lab Supplies, 4E's USA, JOANLAB. The seller of top 1 product has received honest feedback from 90 consumers with an average rating of 4.7.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.