Free help & advice support@plumbestore.com

  • Free basic shipping over $35

    LTL freight charges may apply

  • Free help & advice

    Questions welcome!

  • Stock items ship same day

    For orders before 1pm CST

  • Open Mon-Fri

    9AM-5PM CST

Sun Earth  |  SKU: 100014-1-5

SunEarth Heat Transfer Fluid 5 Gal

Regular price $798.00
Shipping calculated at checkout.

SunEarth Solar HTF 5 Gal is a premium heat transfer fluid engineered for solar thermal systems. Formulated to deliver exceptional freeze protection, corrosion resistance, and long‑term stability, this glycol‑based fluid ensures efficient energy transfer and system longevity. Ideal for residential and commercial solar hot‑water installations, it maintains consistent performance across extreme temperature ranges.

⚙️Key Features:

Feature Description
Freeze Protection Safeguards system components from freezing in cold climates.
Anti‑Corrosion Formula Protects copper, brass, and steel surfaces from oxidation and scale buildup.
High Thermal Efficiency Maximizes heat transfer for optimal collector performance.
Non‑Toxic & Biodegradable Environmentally responsible formulation for safe handling and disposal.
Long‑Life Stability Maintains viscosity and pH balance over extended service intervals.


⚙️Technical Specifications:

Specification Details
Part Number 100014‑1‑5
Capacity 5 Gallons (18.9 L)
Fluid Type Propylene Glycol‑based Heat Transfer Fluid
Operating Temperature Range −30 °F to 250 °F (−34 °C to 121 °C)
pH Level 8.0 – 9.5
Freeze Point −30 °F (−34 °C)
Boiling Point 250 °F (121 °C)
Compatibility All SunEarth solar thermal collectors and drainback systems
Color Clear to light amber
Packaging Heavy‑duty sealed plastic bucket with metal handle


⚙️Technical Documents:

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.