Can you use glycol in a boiler system?

Can you use glycol in a boiler system?

The maximum recommended ratio for glycol dilution with water is 1:2. A glycol concentration lower than 50% avoids overtaxing the performance of the system’s boilers and pumps while eliminating the risk of damage occurring in low-temperature climates.

Can you put antifreeze in a boiler?

Do not use automotive antifreeze in heating boiler systems. Some of these can clog the boiler heat exchanger.

What type of glycol is used in heating systems?

propylene glycol
There are two basic types of glycols used in HVAC systems, propylene glycol and ethylene glycol. Both of these fluids have similar freeze protection and heat transfer characteristics with the main difference being that propylene glycol has a lower toxicity level.

Can you use RV antifreeze in a boiler?

This is a toxic product, it will void your warranty, and you must never have this in your home. (If you have used this in your boiler, remove it immediately and dispose of it properly.) You may only use food-grade propylene glycol. Do not use RV antifreeze – that is intended only for toilets and drains.

How long does propylene glycol last in a heating system?

Dynalene’s customers have systems where the glycol has lasted for more than 15 years. In certain very high temp systems (> 300°F), the glycol may last only a few years. The pH and the inhibitor concentration or reserve alkalinity must be maintained for a glycol to have a prolonged life.

What antifreeze has propylene glycol?

Sierra Antifreeze
Sierra Antifreeze-Coolant Propylene Glycol.

Does propylene glycol expand when heated?

In a typical residential hydronic heating system, a glycol mixture has an expansion rate about 1.2 times that of water alone, therefore a tank for an anti-freeze system should be at least 1.2 times greater in size.

Is propylene glycol the same as antifreeze?

Propylene glycol is added to food and beverages to improve taste and texture. It is not antifreeze. It is considered safe to use in the amount present in foods.

Is antifreeze propylene glycol?

Propylene glycol is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products. However, it has become controversial since it is also an ingredient in antifreeze. This had led to health concerns about possible toxic effects from eating foods that contain it.

Can you use car antifreeze in a central heating system?

Do not use automotive antifreeze (ethylene glycol, which also has silicates). Use only propylene glycol such as Noble No-Burst or Downtherm products with inhibitors. Glycol is a sugar-alcohol type chemical.

Can you buy propylene glycol in stores?

You can buy food grade Propylene Glycol (PG) locally in some specialty craft stores (in the baking section), as well as farm supply stores (e.g. Tractor Supply) for use as a livestock health supplement. It can be found in a variety of quantities and purity ratings, including food and U.S.P. grades.

What’s the difference between glycol and propylene glycol?

There are two main types of glycols: ethylene glycol and propylene glycol. The number one difference between the two glycols is that ethylene glycol is toxic and propylene glycol is not, allowing propylene glycol to be purchased as food grade in addition to the technical or industrial grade.