How to Set Up a Puppywarmer Incubator: Step-by-Step Guide

Table of Contents

• What You'll Need Before Setting Up Your Puppy Incubator
• Puppy Incubator Temperature Chart: Settings by Week
  • Breed-Based Temperature Adjustments
• Step-by-Step Puppy Incubator Setup
  • Step 1: Position and Prep the Enclosure
  • Step 2: Set and Calibrate the Thermostat
  • Step 3: Set Humidity and Ventilation
  • Step 4: Sanitize Before Every Use
• Using an Oxygen Concentrator for Your Puppy Incubator
• Monitoring Newborn Puppy Vitals Inside the Incubator
• How Long Do Puppies Need to Be in an Incubator
  • Post-Whelping Transition and Weaning Out of the Incubator
• Emergency Preparedness: Power Failure and Common Mistakes
• Conclusion

Last Updated: August 17, 2026

What You'll Need Before Setting Up Your Puppy Incubator

Knowing how to set up a puppy incubator correctly before the first puppy arrives is the difference between a reactive scramble and a controlled, clinical environment. A Puppywarmer incubator is a controlled enclosure designed to maintain precise temperature, humidity, and airflow for neonatal puppies who cannot yet regulate their own body temperature. Newborn puppies are entirely dependent on external thermal regulation for the first two to three weeks of life.

Before you begin setup, gather the following:

• A puppywarmer incubator: 12×12 for small breeds, 18×18 for medium breeds and large breeds that often need three or less puppies to be treated in the incubator for more than two days. and the 24×18 incubator (or ywo 18×18 incubators) for large breeds
• Bedding material: Puppywarmer offers washable fleece inserts and Pee Pads sized for Puppywarmer incubators.
• A Puppywarmer oxygen concentrator
• Sanitizing solution appropriate for neonatal environments (fragrance-free, residue-free)—70% Isopropil Alcohol, soap and water or Resue Brand disinfectant recommended
• A puppy scale for daily weight monitoring
• Puppy milk replacer and syring feeding nipples and a tube feeder.

Test setup and test the unit weeks before it is expected to be needed. Plan to have the unit running and holding temperature for at least two hours before any puppy enters it.

Puppy Incubator Temperature Chart: Settings by Week

Neonatal puppy temperature requirements change significantly across the first four weeks of life. Puppies are born with almost no ability to generate their own body heat, a condition known as poikilothermia. The incubator must compensate entirely during this window.

Newborns (wet) 89-91°F (Premature puppies will often need this temperature for the first few days)

Newborns (dry) first three days 88°F (If a puppy is curled in a “C” or you have a puppy pile in the center, the puppies need it a degree or two warmer. If they are pressing against the glass, they need the incubator cooler. The keys to being an effective puppy saver is identifyig what specific puppies need.

Generally, the puppies may need to have the ambient temperature reduced about 1°F every two days—but it is important to be in tune with the specific puppy needs.

When a puppy’s eyes open, often in 10-14 days, it is an indicator that the puppy has progressed to the point of being better able to regulate its body temperature and it is now time to gradually move to room temperature of about 72°F.

These ranges represent the ambient air temperature inside the enclosure. A thermal gradient, a warm zone and a slightly cooler zone within the same enclosure, is essential. It allows puppies to self-regulate by moving toward or away from the heat source. The Puppywarmer incubator is warmer near the center and cooler near the glass. The larger a puppy is compared to its littermates, the more likely the puppy is to be near the glass. It may be necessary to put the larger puppies with mom so the correct conditions can be created for the at-risk puppies.

Hypothermia is the leading cause of fading puppy syndrome in the first week. A puppy that feels cool to the touch and is crying persistently needs immediate warming, not feeding.

Breed-Based Temperature Adjustments

Toy and small breeds lose body heat faster relative to their mass and often require temperatures at the higher end of each weekly range. Large and giant breeds generate more body heat collectively when in a litter and may need slightly lower settings to prevent overheating, especially in litters of eight or more.

Single puppies are high-risk regardless of breed. Without littermates to huddle with, they rely entirely on the incubator environment and need temperatures toward the upper range for their age.

Step-by-Step Puppy Incubator Setup

Proper setup follows a specific sequence. Skipping steps, particularly calibration and sanitization, creates risk that won't show up until a puppy is already in distress.

Close-up of a Puppywarmer glass puppy incubator with a digital thermostat display, ceramic heating element, and clean fleece bedding inside.

Place the incubator on a stable, flat surface away from drafts, air conditioning vents, and direct sunlight.

Position the unit at a comfortable working height. You'll be reaching in frequently, and an awkward angle increases the risk of accidentally jostling a fragile neonate.

Step 2: Set and Calibrate the Thermostat

Set the puppywarmer incubator up with the sensor hanging straight down and not touching the glass.

Make sure the oxygen is facing away for the sensor so the sensor is measuring internal incubator air temperature.

Have the doors closed as much as possible. Leaving the doors open for an extended period of time creates a less controlled air exchange. The heaters have to work harder to maintain temperature. When the doors are closed after an extended period of time the excess heat on the heater and reflector dissipate into the incubator before being driven out by the controlled air exchange. The discipline to keep the doors closed as much as possible provides the puppies with a more consistent ambient temperature inside the incubator.

Step 3: Set Humidity and Ventilation

Target humidity of 40-60% for neonates in the first two weeks. Low humidity accelerates dehydration; high humidity promotes bacterial growth and respiratory issues.

The Puppywarmer incubator has an embedded humidity gage inside the stainless steel top.

The Puppywarmer incubator has venting for a controlled air exchange.

Step 4: Sanitize Before Every Use

Every surface that contacts a puppy must be sanitized between litters and after any puppy showing signs of illness.

A proper sanitization protocol includes:

1. Remove all bedding and dispose of or launder at high temperature
2. Wash all interior surfaces with 70% alcohol to remove organic material
3. Apply a Rescue Brand Disinfectant (or similar) appropriate for neonatal environments and allow full contact time per the manufacturer's instructions
4. Rinse thoroughly; residue from cleaning agents can be toxic to neonates
5. Allow to air dry completely before reintroducing bedding

Glass enclosures offer a significant advantage. Unlike plastic, glass doesn't harbor bacteria in surface micro-scratches and can withstand more aggressive cleaning protocols. The Association of Shelter Veterinarians guidelines on neonatal animal care emphasize that surface material and cleanability are primary factors in infection control for neonatal environments.

Using an Oxygen Concentrator for Your Puppy Incubator

Oxygen supplementation is the most underutilized tool in neonatal puppy care. Many breeders don't consider it until a puppy is already in crisis.

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Puppy saved with supplemental oxygen

An oxygen concentrator for a puppy incubator delivers a continuous, controlled flow of concentrated oxygen into the enclosure. For puppies with weak respiratory drive, those born via cesarean section, or those showing signs of fading puppy syndrome, supplemental oxygen can determine survival.

The setup is straightforward:

1. Position the concentrator adjacent to the incubator, not inside it
2. Run the oxygen line through a small port or gap in the enclosure seal
3. Set flow rate conservatively, typically 1 liter per minute for the 12×12 Puppywarmer incubator, 1.3 lpm for the 18×18 and 1.6 lpm for the 24×18 incubator.

Monitoring Newborn Puppy Vitals Inside the Incubator

Monitoring is continuous, not periodic. A puppy can decline rapidly, within minutes in severe cases.

While you should certainly monitor your puppies regularly, you may have help.

Key vitals to track for each puppy:

• Body temperature: Normal rectal temperature for a neonate in the first week is 95-99°F. Below 94°F is an emergency.
• Breathing rate: Normal is 15-35 breaths per minute. Labored, shallow, or gasping breathing requires immediate intervention.
• Weight: Puppies should gain weight daily after day one. Any puppy losing weight two days in a row needs supplemental feeding evaluation.
• Skin turgor: Gently tent the skin on the scruff. It should snap back immediately. Slow return indicates dehydration.
• Cry pattern: Persistent, high-pitched crying in a warm puppy often signals hunger or pain, not temperature issues.

Log each puppy's weight and temperature at least twice daily for the first two weeks. Patterns matter more than individual readings. Consider calculating a percentage gain of weight over original birthweight and keep a graph of progression of all puppies over time. This allows you to see earlier which puppies are not progressing as well as the norm.

According to Merck Veterinary Manual guidance on neonatal puppy care, failure to gain weight in the first 24-48 hours is one of the strongest early predictors of neonatal mortality, making daily monitoring critical.

How Long Do Puppies Need to Be in an Incubator

The duration a puppy needs incubator support depends on its health status, birth circumstances, and ability to thermoregulate independently. There is no fixed timeline that applies universally.

For healthy puppies from a normal whelping where the mother is nursing, incubator use is typically limited to the first 24-48 hours as a precaution. For orphaned or premature neonates, full incubator support often extends through the first three to four weeks.

A puppy is ready to reduce incubator dependence when it can maintain a rectal temperature of at least 97°F without external heat for 30 minutes in a room-temperature environment.

brachycephalic and at-risk puppies can be in the incubator for more than a week. If a puppy has a respiratory issue, it will likely benefit from enhanced oxygen. If the puppy is able to regulate their body temperature well, the incubator can be left off and used as an enclosure.

Emergency Preparedness: Power Failure and Common Mistakes

Power failure is the scenario most breeders don't plan for until it happens. A puppy incubator without power becomes a cold box within minutes. In winter months, a power outage of even 30-45 minutes can be life-threatening for neonates in the first week.

A practical emergency power plan includes:

• A UPS (uninterruptible power supply) capable of running the incubator for at least 60-90 minutes
• A generator with enough capacity for the incubator and oxygen concentrator
• A manual warming protocol: pre-warmed towels, warm water bottles wrapped in cloth, and a backup heat source ready to deploy immediately

The most common setup mistakes that compromise puppy survival:

Delaying incubator use is also critical to avoid. Breeders who wait to see if a struggling puppy "comes around" on its own lose critical time. The first 30 minutes of a fading puppy's decline are the most recoverable.

For broader context on neonatal thermal physiology, the Cornell University College of Veterinary Medicine neonatal care resources provide detailed clinical background that complements hands-on setup protocols.

The hardest part of neonatal puppy care isn't knowing what to do, it's having the right equipment ready to do it precisely when it counts. Puppywarmer incubators are built specifically for this challenge, with a PID learning controller for precise temperature control, a ceramic infrared heater that warms puppies directly rather than just heating the air around them, and a glass enclosure that sanitizes completely between litters. For breeders and rescue organizations managing high-risk neonates, that level of control isn't a luxury. Add a Puppywarmer incubator to your whelping setup and give every puppy in your care the controlled, stable environment they need to survive and thrive.