TLDR: Plastic tubing seems the safest to use. Condensate piping shall be of approved corrosion-resistant material and shall not be smaller than the drain connection on the appliance.

What type of pipe is used for condensate drain?

Condensate is the water that forms on the exterior of a cooling coil and drips down to be… Polyvinyl Chloride (PVC) piping is the most widely used plastic piping material.

How do you pipe a furnace condensate drain?

Quote from the video:
Quote from Youtube video: You need to have a drain down from the lower right corner of the collector box on the secondary heat exchanger. You need to have a drain in the lowest point of the system.

Can boiler condensate go into sink waste pipe?

Can a condensate pipe go into a waste pipe? Yes, a condensate pipe can be routed into a waste pipe.

Can boiler condensate go into cast iron pipe?

It is acceptable to discharge the condensate drain from a Worcester condensing boiler into cast iron pipework providing it can be ensured that the cast iron pipework which will be in contact with the condensate discharge will be regularly flushed with water from another source (see Fig. 1 & Fig. 2).

What size should a boiler condensate pipe be?

Any external boiler condensate pipe must be a minimum internal diameter (ID) of 30mm, and insulated, using suitable waterproof and weatherproof insulation. Any internal condensate pipe should be a minimum of 19mm ID and upsized to 30mm ID minimum before passing through the building structure to outside.

Can you use copper pipe for condensate?

The condensate pipe must be plastic – usually solvent-weld fittings – and at least 22 mm in diameter. Copper or steel pipework cannot be used. This is because, at a pH of 3-4, the condensate is slightly acidic and would corrode it. Condensate pipes may run outside or through unheated buildings, such as garages.

Why is PVC pipe used for venting on condensing furnaces?

Some high-efficiency furnaces also include a plastic pipe for the intake area, and all types use a third plastic pipe to drain away the corrosive condensation resulting from the combustion process.

What size is furnace drain pipe?

All components shall be selected for the pressure and temperature rating of the installation. Condensate waste and drain line size shall not be less than 3/4-inch (19 mm) internal diameter and shall not decrease in size from the drain pan connection to the place of condensate disposal.

Does a furnace condensate drain need a trap?

All condensate drains go into a trap. The condensate trap is absolutely mandatory for a high-efficiency gas furnace. Since the drain taps into the exhaust system, leaving it open to the air would allow for a potential exhaust/flue gas leak in the living space, which is a big no-no.

Where should I run my condensate drain line?

The drain line access pipe is located near your indoor unit, which may be in your attic, crawl space, or garage, typically installed on top of the gas furnace in your home.

Does a condensate pipe need a trap?

A visible air break and trap is not required if the boiler condensate trap has a minimum condensate seal of 75 mm incorporated into the boiler.

Can you use push fit on condensate pipe?

I’d also say no for push fit if passing condensate through fit. Solvent weld always.

Does a boiler condensate pipe need a trap?

The boiler should never be operated without the condensate trap in place, as it prevents noxious combustion gases from travelling down the condensate pipe.

What is the plastic pipe from boiler?

The condensed water vapour (now just water) then leaves the boiler through something called a condensate pipe. The condensate pipe is usually a white PVC-U pipe, similar to one you may find on a washing machine or sink waste pipe which usually goes outside into a drain.

Can you run boiler condensate into gutter?

Yes, it is combined as the same drain is connected to toilets – all going into sewer. Ok, so as long at its is insulated from where it exits the building until the gulley if won’t freeze.

Can boiler condensate go into rainwater drain?

It is possible to terminate a condensate pipe into a rain water down pipe that terminates into the foul waste system. As with all externally-run condensate pipes, it is recommended to keep the external run to minimum and the pipe diameter to 32mm when exiting the property.

Can condensate drain to ground?

That’s why we call it a gravity drain because as long as we have the necessary 1/8 inch of downward slope for every 12 inches of carry, gravity will do all the work and pull the condensate waste to the ground all by itself.

How much water comes out of a boiler condensate pipe?

A typical hour-long operation of your boiler may produce around 2 or 3 litres of the condensate water waste. This waste generally gets released in 300ml increments, and is often the reason you might hear water travelling through your pipes during intervals.

What does a boiler condensate pipe look like?

Look under the boiler to see if there is a plastic pipe – It’s usually white and around 20mm (about ¾”) wide. The pipe should run to the outside of your home and should always run into a drain. An example of a condensate pipe is shown below. The condensate pipe is the diagonal pipe running along the side of the house.