Slant/Fin - Since 1949 - Boilers & Baseboards - The Only Name you want heating your home
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Cleaning a new steam boiler installation

New steam boiler installations introduce chemicals, such as cutting oils, into the steam system. Mud and dirt build up in the system piping for years and often breaks loose during removal of the old boiler and installation of the new boiler. This often leads to foaming (priming) and surging of the boiler water. Surging and priming lead to low water cut-off shutting off the boiler and can also lead to boiler failure. Clean water is required to prevent this. Therefore new steam boiler installations require cleaning, this cleaning may require multiple return visits to the job.

A clean system and clean water are the goals. Even when you clean the boiler water in a new replacement boiler after operation scale, dirt and oils present in the system piping will be flushed back to the boiler.

Boiler and system cleaning

  1. Draining and flushing of the boiler will remove solid material and dissolved additives, however it does not remove oils, grease or other films that have lined the boiler and system piping.
  2. Chemical cleaners made specifically for steam boiler systems, such as Utility brand “Dry Stream”, help prevent priming and foaming surging, also loosen rust and mineral deposits and aid in cleaning of the boiler and system. Remember to flush all additives from the boiler and system after a week or two. Dry Steam is a product of Utility Manufacturing located in Westbury, NY. We have found Dry Steam to be an effective boiler cleaner.
  3. Dry Steam is a great cleaner and there are a couple of methods for “blowing-off” a Slant/Fin steam boiler.
    1. Galaxy GXH and GXHA boilers without tankless coils have a skimming trough built into the casting. This trough is located just below the normal water level. The double sided trough extends for 6 inches in the boiler casting, this gives 12 effective inches to skim the top layer (where the oils sit) of the water surface. Follow the detailed instructions within the Galaxy steam boiler installations instruction to take advantage of this unique feature.
    2. Boilers without a skimming trough.
      1. Turn off electrical power supply to boiler. Allow boiler to cool down and also allow pressure to reduce to zero before attempting removal of components. Check for pressure by testing pop safety valve. With no pressure in boiler install skimmer valve and skimming piping as shown in Figure B. Make sure the bucket used to catch skimming discharge if covered with a cloth to help prevent hot skimming discharge escaping the bucket and leading to a dangerous situation.
      2. Cautiously open the skimming valve, do not open the boiler drain valve. Slowly fill the boiler with water until water seeps into the bucket. Maintain this water level so you are just able to continue skimming. Fire the boiler and allow water the slowly skim and seep into the bucket. Empty the bucket frequently and continue skimming until water is clean and no oil can be seen floating on top of the water in the bucket. This process may have to be repeated until the system and system water are clean. On dirty systems this process may have to be repeated after a few days or weeks.
      3. When finished remove the skimming piping, remove tee below pop safety valve and install pop safety valve following the boiler’s installation manual.
      4. Never install a valve between the boiler and the pop safety valve. Install discharge piping on the pop safety valve following the boiler’s installation manual and local codes. Make sure all pipe connected to the pop safety valve is sized the same as the pipe connections to the valve. Never decrease the pipe size connected to the inlet and discharge sides of the pop safety. Never have a valve installed in the piping to or discharge side of the pop safety valve.
    3. Never add any type of chemical or cleaner to a steam boiler or steam system unless it is a product made specifically for steam systems. In a low pressure steam boiler water liquid expands around 1700 times when the water becomes low pressure steam. A lot of action goes on within a steam boiler so the boiler and system must be clean to produce quality dry steam into a steam heating system. Further, to ensure proper water level stability during steam boiler operation it is imperative the “near boiler piping” is installed exactly as detailed in our boilers’ installation instructions. During operation the pressure at the supply and return openings to the steam boiler must be equal, this is why you install the “equalizer” piping. Improper piping and cleaning of a steam boiler also leads to noisy banging (water hammer) in the system pipes. Steam velocity is fast and can exceed 40 miles per hour, this is one reason why “dry steam” is the only steam that should leave a steam boiler.
    4. We suggest you adjust the cut-out for the PA404A1009 Pressuretrol to a maximum of 2 P.S.I.G. with a 0.5 P.S.I.G. cut-in for normal residential boiler operation.

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Cleaning and Service should only be done by Certified Contractors

Slant/Fin’s new Decorator Series elevates baseboard heating to a whole new design level with exciting new colors

Decorator Baseboard Sign 2

Greenvale, NY – Slant/Fin Corp. has taken baseboard heating to the next level.  Slant/Fin Decorator Series premium baseboard is now available in a range of decorator colors to meet growing architectural and contractor demand for residential baseboard heating that offers more flexibility through colors to complement any home décor.
The Decorator Series is available in 30 Series, Multi/Pak 80 Series, as well as commercial fin-tube radiation products. The new colors are Brite White, Shell White, Almond, Mineral Bronze, Rubbed Bronze, Cloud Grey, Flat Black, and Mirror Black.
Decorator Series is powder-coated and then baked to create an appliance-like finish that resists scratches, rust and chipping more effectively than any other residential baseboard on the market while enhancing any home interior at an affordable price. They are easy to clean and made with an eco-friendly electrostatic process that uses 100% organic compounds.
Premium Baseboard and Commercial Fin-Tube Radiation heating can now be treated as an important visual element that contributes not only to the heating comfort of a room but its complete look and feel from an architectural standpoint. With a depth of just under 3 inches the 30-DS is non-invasive and can finally be looked upon to complement interior design.
Slant/Fin Decorator Series is manufactured with the same features that contractors have grown to love and trust for over 60 years, which is why Slant/Fin continues to be America’s #1 brand of baseboard for use in home renovation and new construction.
Slant/Fin is America’s leading manufacturer of baseboard heating equipment, and a top US manufacturer of gas and oil Residential, Commercial and High Efficiency Boilers.
Since 1949 contractors and homeowners have come to know and trust the company’s record of high-quality innovation, now with exciting new colors to take any room décor to the next level.
For more information, please contact your local wholesaler or call 516-484-2610 ext 369.

Hurricane-Damaged Boilers Will Be Replaced in New York Public Housing


Thousands of New York City public housing residents faced an agonizing wait for heat and hot water to return after Hurricane Sandy flooded their buildings’ boilers in 2012. Even after officials rushed temporary boilers to New York in the weeks after the storm, service has remained unreliable through two winters.

But under a deal between federal and city agencies that was announced Sunday, all 110 public housing buildings that have been relying on temporary boilers to serve 8,862 apartments will be getting new boilers, with the process expected to begin within six months. Under the terms of the $100 million agreement, federal funds will be used to reimburse the city’s financially stretched public housing authority for the costs of the temporary boilers as well as the new ones.

“The hardship is still real,” Senator Charles E. Schumer, who shepherded the deal between the Federal Emergency Management Agency and the New York City Housing Authority, said on Sunday at the Stanley M. Isaacs Houses, a public housing development on the Upper East Side.

The temporary boilers are “not up to snuff,” he added. “We’ve cut through the red tape and we’ve brought this situation now to a speedy end.”

The housing authority has been spending $3 million per month to rent the temporary boilers since the storm — in all, about $56 million at developments in the Rockaways, in Coney Island and on the Lower East Side. The borrowed boilers have each been doing the work of multiple permanent boilers, 60 of which suffered flood damage.

The installation process is slated to start within six months, Mr. Schumer said, but it is unclear when all the boilers will be replaced.

Announcing the deal alongside Mayor Bill de Blasio and the chairwoman of the housing authority, Shola Olatoye, Mr. Schumer said the agreement would improve on FEMA’s normal policy of repairing, not replacing, damaged infrastructure. The original boilers had been showing their advanced age even before the hurricane hit, he said, making replacements all the more necessary.

The new boilers, which will be paid for with funds from the federal aid package for Hurricane Sandy victims, will be more water-resistant and built at higher elevations to help protect them from floods, he said. They will also burn natural gas instead of oil.

Mr. de Blasio praised the senator for pushing the agreement forward, adding that as the city continues to rebuild, “we have to find a way to right some wrongs in the process,” including replacing the antiquated boilers.

Though the news is sure to please some residents, Mr. de Blasio, who has been fending off criticism from several directions lately, had a run-in with yet another group of protesters on Sunday: Outside the building waited several dozen Upper East Side residents who oppose the city’s plan to build a waste transfer station nearby.

As they tried to swarm the mayor, he and his aides beat a hasty retreat indoors, moving the news conference with them. Mr. de Blasio said that while he respected the protesters’ opinions, he wanted to focus on the boiler deal, a “very important moment for New York City.”

Slant/Fin boilers and baseboard…

The Only Name you want heating your home.

Slant/Fin was founded by Mel Dubin in 1949. It was started in the back of a bakery in Coney Island, NY. When the company started its focus was commercial grade element and the original design was a locked, slanted fin, hence the name Slant/Fin. One of Mel’s favorite stories is about how small the original work area was. When they were making 10 foot element they had to manufacture half the element at a time, then open the back door to turn it around to finish. We are proud that Slant/Fin has grown and is now America’s largest manufacturer of baseboard heating equipment. We are also one of the top manufacturers of gas boilers and oil boilers.  Since 1949, heating contractors, engineers and builders have depended on Slant/Fin for products of the highest quality.  Our heating equipment is installed in millions of homes in The United States, Canada and around the world.


Isn’t water amazing?

It cools us in the summer. Quenches thirst like nothing else. Keeps our bodies working at optimal efficiency. And anyone who’s been in an intense water-gun fight knows how much fun it can be.

But even though it’s been around in numerous forms for decades, a lot of people still don’t think of water when it relates to home heating. But, as it turns out, home heating utilizing water — better known these days as radiant heat or “hydronics” — is actually the best way to enjoy maximum comfort while achieving cost-savings as high as 25% every month!