---
product_id: 309742723
title: "Sponsored Ad – E100 Solar Thermal Heat Transfer Fluid 5L"
brand: "trade chemicals"
price: "€ 154.22"
currency: EUR
in_stock: true
reviews_count: 4
category: "Trade Chemicals"
url: https://www.desertcart.de/products/309742723-sponsored-ad-e100-solar-thermal-heat-transfer-fluid-5l
store_origin: DE
region: Germany
---

# Pre-mixed, no dilution needed Protects down to -20°C Includes biocide for system longevity Sponsored Ad – E100 Solar Thermal Heat Transfer Fluid 5L

**Brand:** trade chemicals
**Price:** € 154.22
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay chill, stay efficient — the ultimate freeze-proof solar fluid!

## Quick Answers

- **What is this?** Sponsored Ad – E100 Solar Thermal Heat Transfer Fluid 5L by trade chemicals
- **How much does it cost?** € 154.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/309742723-sponsored-ad-e100-solar-thermal-heat-transfer-fluid-5l)

## Best For

- trade chemicals enthusiasts

## Why This Product

- Trusted trade chemicals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Verification:** Use a refractor to quickly double-check freeze protection levels, giving you peace of mind with every fill.
- • **Ready-to-Use Formula:** Pre-mixed and perfectly balanced—just add E100 directly without any dilution for instant protection.
- • **Freeze-Proof Confidence:** Engineered to safeguard your solar system down to -20°C, ensuring uninterrupted performance even in harsh winters.
- • **Built-In Biocide Defense:** Protects your system from microbial growth, extending the lifespan and efficiency of your solar thermal setup.
- • **System-Optimized Maintenance:** For peak results, pair with C300 system cleanser following BS7593:2006 standards to keep your solar circuit pristine.

## Overview

E100 Solar Thermal Heat Transfer Fluid is a premium 5L pre-mixed solution designed to protect solar water heating systems down to -20°C. It combines Mono Ethylene Glycol, inhibitors, and biocide to prevent freezing and microbial growth without the need for dilution. Trusted by professionals, it ensures system longevity and optimal performance with easy verification via refractor and recommended maintenance protocols.

## Description

E100 Solar Thermal Heating Fluid 25L Pre Mixed to treat 25L System to minus 20 degrees E100 Solar Thermal Heating System Fluid is a blend of Mono Ethylene Glycol, Inhibitor and Biocide Blended for protection of down to minus 20 degrees C Simple add E100 to your system without any dilution in order to receive the full minus 20 degree protection Use a refractor in order to double check the protection No need to add any other products to your Solar System Water Safety data sheets available upon request

Review: E100 Solar Thermal Heat Transfer Fluid 5L - Excellent service...just what I wanted
Review: Perfect for my requirements. - Used for topping up solar water heating circuits.

## Features

- No need to add any other products to your Solar System Water
- add E100 to your system without any dilution in order to receive the full minus 20 degree protection
- Use a refractor in order to double check the protection
- Product includes biocide
- For best results systems should first be cleansed and then flushed with C300 in accordance with BS7593:2006

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08KY2H6RT |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (27) |
| Date First Available | 5 Oct. 2015 |
| Item Package Quantity | 1 |
| Item Weight | 5 kg |
| Manufacturer | Trade Chemicals |
| Manufacturer reference | C100S25 |
| Part Number | C100S25 |
| Size | 5L |

## Images

![Sponsored Ad – E100 Solar Thermal Heat Transfer Fluid 5L - Image 1](https://m.media-amazon.com/images/I/61SpvG0ANGL.jpg)

## Questions & Answers

**Q: Will this mix with other transfer liquids ?**
A: I would get in touch with the manufacturer and ask them first, I know some solar thermal heat transfer products are incompatible. I think the E100 is mono ethylene glycol MEG but check first!

**Q: Can we use this in electric radiators?**
A: No. This product is for solar panels not for electric heaters.

**Q: Can this be used with a wet underfloor heating system?**
A: No, this is for solar heating system, underfloor heating is the same as radiators - water with inhibitor

**Q: Can you recommend a compatible pump to use with this solution?**
A: you need a magnetic drive 12 or 24 volt solar pump if you are using it for solar. Either way a magnetic drive pump is what you need for chemicals.

## Customer Reviews

### ⭐⭐⭐⭐⭐ E100 Solar Thermal Heat Transfer Fluid 5L
*by T***R on 2 January 2023*

Excellent service...just what I wanted

### ⭐⭐⭐⭐⭐ Perfect for my requirements.
*by A***R on 8 November 2022*

Used for topping up solar water heating circuits.

### ⭐⭐⭐⭐⭐ A really good product and a good price
*by T***L on 7 May 2022*

Used in my solar hot water system very good product .

## Frequently Bought Together

- E100 Solar Thermal Heat Transfer Fluid 5L
- Dyna-Living Test Pump for Water Pipe Line Installation - Heating System Water Leakage Pressure Tester (Yellow)

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---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-26*