PERSON SAFELY PREPARING A HEARTWARMER

Safety Instructions for Heartwarmers

Critical Safety Information

Improper use of hot water bottles can lead to burns, scalding, or other injuries. Please read and follow these safety guidelines carefully.

While Heartwarmers are a simple concept, using them safely requires attention to detail. These instructions will help you avoid common hazards and maximize the effectiveness of your Heartwarmer.

Choosing the Right Bottle

Recommended Bottle Types

  • Nalgene or similar hard plastic bottles rated for hot liquids (look for "BPA-free" and temperature ratings)
  • Metal water bottles designed for hot beverages (stainless steel is preferable)
  • Purpose-made hot water bottles with secure caps

Never Use These Bottles

  • Disposable plastic bottles (like soda or water bottles)
  • Bottles with cracks, leaks, or damaged caps
  • Bottles not rated for hot liquids
  • Glass bottles (risk of breakage)
EXAMPLES OF SAFE VS. UNSAFE BOTTLES

Temperature Guidelines

Safe Temperature Range

  • Ideal temperature: 120°F to 140°F (49°C to 60°C)
  • Maximum safe temperature: 150°F (65°C)

Burn Risk Warning

Water above 150°F (65°C) can cause serious burns within seconds of contact with skin. If you can't comfortably hold the bottle against your wrist, it's too hot.

Temperature Testing

If you don't have a thermometer, use the wrist test:

  1. Fill your bottle with hot water
  2. Secure the cap tightly
  3. Hold the bottle against the inside of your wrist
  4. If it feels uncomfortably hot, let it cool before using

Proper Filling Technique

Step 1: Prepare Your Bottle

Inspect your bottle for any damage, cracks, or leaks. Make sure the cap is in good condition with an intact seal.

Step 2: Fill Safely

  • Fill the bottle to about 75-80% capacity (not completely full)
  • Leave some air space at the top to allow for water expansion
  • Avoid splashing hot water on yourself

Step 3: Secure the Cap

Tighten the cap firmly but not excessively. It should be secure enough to prevent leaks but not so tight that it damages the threads or seal.

Step 4: Test for Leaks

Hold the bottle upside down (over a sink) to check for leaks before using.

Pro Tip

If available, use a funnel to fill your bottle to reduce the risk of spills and burns.

Safe Usage Practices

Wrapping Your Heartwarmer

Always wrap your Heartwarmer in cloth before placing it against your body:

  • Use a towel, sock, t-shirt, or similar fabric
  • Ensure the wrapping is thick enough to provide insulation
  • The wrapping helps distribute heat evenly and prevents direct contact with the hot surface

Placement Guidelines

  • Recommended: Near core body areas (stomach, lower back, chest)
  • Use caution: Near feet, hands, or neck
  • Avoid: Direct contact with sensitive areas or bare skin

Never Do These Things

  • Sleep directly on top of an unwrapped Heartwarmer
  • Microwave your water bottle to reheat it
  • Use boiling water straight from the kettle
  • Leave a Heartwarmer in direct sunlight when not in use
  • Use a Heartwarmer with any signs of damage

Maintenance and Care

Regular Inspection

Before each use, check your bottle for:

  • Cracks or damage to the bottle body
  • Leaks around the cap or seal
  • Discoloration or warping of the plastic
  • Mold or mildew inside the bottle

Cleaning

  • Clean your bottle regularly with warm, soapy water
  • Rinse thoroughly to remove all soap residue
  • Allow to dry completely before storing
  • For deep cleaning, use a bottle brush and vinegar solution

Replacement

Replace your Heartwarmer bottle if:

  • It shows any signs of damage or wear
  • It's more than 2 years old (for plastic bottles)
  • The cap no longer seals properly
  • You notice any leaks, however small

Emergency Response

In Case of Burns

  1. Cool the burn immediately with cool (not cold) running water for 10-15 minutes
  2. Do not apply ice, butter, or ointments to a burn
  3. Cover with a clean, non-stick bandage
  4. Seek medical attention for serious burns, especially if they:
    • Cover a large area
    • Affect the face, hands, feet, genitals, or major joints
    • Appear white, charred, or leathery
    • Cause severe pain or numbness

In Case of Leaks

If your Heartwarmer leaks while in use:

  1. Move away from the hot water immediately
  2. Remove any wet clothing
  3. Check for burns and treat as needed
  4. Discard the damaged bottle

Special Considerations

For People with Reduced Sensation

If you have diabetes, neuropathy, or other conditions that reduce sensitivity to temperature:

  • Use extra caution and lower temperatures
  • Have someone else test the temperature if possible
  • Use thicker wrapping around the bottle
  • Check skin frequently for signs of irritation

For Use with Children

Children should only use Heartwarmers with adult supervision. Use lower temperatures and ensure the bottle is securely wrapped.

Next Steps

Now that you understand how to safely use a Heartwarmer, learn where to find hot water sources in your community.

Finding Hot Water Sources What is a Heartwarmer? Find Resources Near You