{"id":92506,"date":"2021-04-07T11:11:36","date_gmt":"2021-04-07T09:11:36","guid":{"rendered":"https:\/\/xodostore.com\/prodotto\/montegrappa-pellet-boiler-model-aktiv-23-s-28-s-35-s\/"},"modified":"2025-09-16T09:57:03","modified_gmt":"2025-09-16T07:57:03","slug":"montegrappa-pellet-boiler-model-aktiv-23-s-28-s-35-s","status":"publish","type":"product","link":"https:\/\/xodostore.com\/en\/prodotto\/montegrappa-pellet-boiler-model-aktiv-23-s-28-s-35-s\/","title":{"rendered":"MONTEGRAPPA pellet boiler model AKTIV 23 S – 28 S – 35 S"},"content":{"rendered":"

MONTEGRAPPA pellet boiler model AKTIV 23 S – 28 S – 35 S<\/h2>\n

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Compact and with an essential design, Aktiv is the pellet boiler for heating water. The cladding and structure are made of painted steel. Accessory on request additional pellet tank, reversible DX\/LH capacity: 350 kg – dimensions: 74L x 189h x 81p cm composed of: PELLET AUXILIARY TANK KIT net weight 100 kg AUGER KIT FOR AUXILIARY TANK net weight 25 kg <\/p>\n

Customization and adaptability to any type of environment Possibility for the user to adjust the calibration of the pellet combustion Silence and maximum comfort Reduction of pellet consumption for greater savings Reduction of polluting emissions Maximum adaptability to any type of pellet, to the flue and to the different types of installation Minimal and easy maintenance: Cleaning the boiler is quick and easy High water efficiency Flexibility of installation thanks to the different types of system that can be set Possibility of setting the temperature of the operating and starting water of the circulator Possibility of connecting the thermostats and the room temperature probe Possibility of connecting the temperature probe and setting the temperature of the puffer Possibility of connecting the temperature probe and setting the boiler temperature Optimal management of the three-way valve for the production of domestic hot water Possibility of installing the domestic hot water production kit Possibility of combining it with another generator Possibility of installing the separation kit of the primary and secondary circuits<\/p>\n

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AKTIV<\/p>\n

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Dimensions: L 76 x P 80 x H 125 cm<\/p>\n<\/div>\n

\"Marking \"European \"European<\/div>\n<\/div>\n

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Technical data<\/h2>\n<\/div>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\nMass <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n\"class-AA\"<\/td>\n\"class-AA\"<\/td>\n\"class-AA\"<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\"AP_4stelle_2018\"<\/td>\n\"AP_4stelle_2018\"<\/td>\n\"AP_4stelle_2018\"<\/td>\n<\/td>\n<\/tr>\n
<\/td>\nAKTIV 23S<\/strong><\/td>\nAKTIV 28S<\/strong><\/td>\nAKTIV 35S<\/strong><\/td>\n<\/td>\n<\/tr>\n
Quality class (D.M. 186 – 7\/11\/2017)<\/td>\n\"4-star\"<\/td>\n\"4-star\"<\/td>\n\"4-star\"<\/td>\n<\/td>\n<\/tr>\n
overall heat output (at the hearth)<\/td>\n24.5<\/td>\n

mm<\/p>\n

28.9<\/td>\n33.3<\/td>\nKw<\/td>\n<\/tr>\n
Certified power rendered to water<\/td>\n6.3 – 22.6<\/td>\n6.3 – 26.5<\/td>\n6.3 – 30.5<\/td>\nKw<\/td>\n<\/tr>\n
CO measured (at 13% oxygen)<\/td>\n0.003<\/td>\n0.005<\/td>\n0.005<\/td>\n%<\/td>\n<\/tr>\n
yield<\/td>\n92.1<\/td>\n91.8<\/td>\n91.6<\/td>\n%<\/td>\n<\/tr>\n
Fuel<\/td>\n

consumption<\/p>\n

1.42 – 5.13<\/td>\n1.42 – 6.0<\/td>\n1.42 – 6.97<\/td>\nkg\/h<\/td>\n<\/tr>\n
flow rate of fumes<\/td>\n5.9 – 13.3<\/td>\n5.9 – 15.7<\/td>\n5.9 – 18.2<\/td>\ng\/s<\/td>\n<\/tr>\n
Flue<\/td>\n

gas temperature<\/p>\n

56 – 96<\/td>\n56 – 111<\/td>\n56 – 127<\/td>\n\u00b0C<\/td>\n<\/tr>\n
draught (vacuum at the chimney)<\/td>\n\n 6<\/td>\n\n 6<\/td>\n\n 6<\/td>\nPa<\/td>\n<\/tr>\n
internal section of the chimney <\/td>\n\u00d8 120<\/td>\n\u00d8 120<\/td>\n\u00d8 120<\/td>\nMm<\/td>\n<\/tr>\n
h. min. flue <\/td>\n4<\/td>\n4<\/td>\n4<\/td>\nMm<\/td>\n<\/tr>\n
Tank<\/td>\n

capacity<\/p>\n

88<\/td>\n88<\/td>\n88<\/td>\nKg<\/td>\n<\/tr>\n
autonomy<\/td>\n61.5 – 17<\/td>\n61.5 – 14.5<\/td>\n61.5 – 12.5<\/td>\nh<\/td>\n<\/tr>\n
Smoke<\/td>\n

outlet pipe<\/p>\n

\u00d8 100<\/td>\n\u00d8 100<\/td>\n\u00d8 100<\/td>\nMm<\/td>\n<\/tr>\n
air inlet for combustion<\/td>\n\u00d8 80<\/td>\n\u00d8 80<\/td>\n\u00d8 80<\/td>\nMm<\/td>\n<\/tr>\n
Heatable surface with certified<\/td>\n

power<\/p>\n

260<\/td>\n304<\/td>\n350<\/td>\n*sqm<\/td>\n<\/tr>\n
net weight<\/td>\n260<\/td>\n260<\/td>\n260<\/td>\nKg<\/td>\n<\/tr>\n
Weight with packaging<\/td>\n280<\/td>\n280<\/td>\n280<\/td>\nKg<\/td>\n<\/tr>\n
* with the conditions shown in the General Catalogue<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\"AKTIV\"<\/p>\n

\"logo-air-clean\"<\/p>\n

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product in possession of the requirements for achieving the “4 stars” Clean Air<\/p>\n

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FOLLOW US ON INSTAGRAM!<\/a><\/p>\n

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OUR SITE<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

MONTEGRAPPA pellet boiler model AKTIV 23 S – 28 S – 35 S   Compact and with an essential design, Aktiv is the pellet boiler for heating water. The cladding and structure are made of painted steel. Accessory on request additional pellet tank, reversible DX\/LH capacity: 350 kg – dimensions: 74L x 189h x 81p […]<\/p>\n","protected":false},"featured_media":139344,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[1787,1843],"product_tag":[1789,1691],"class_list":{"0":"post-92506","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-boilers","7":"product_cat-pellet-boilers","8":"product_tag-boiler","9":"product_tag-montegrappa-en","10":"product_shipping_class-large-pallets","12":"first","13":"instock","14":"sale","15":"taxable","16":"shipping-taxable","17":"purchasable","18":"product-type-variable"},"acf":[],"_links":{"self":[{"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/product\/92506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/comments?post=92506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/media\/139344"}],"wp:attachment":[{"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/media?parent=92506"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/product_brand?post=92506"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/product_cat?post=92506"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/xodostore.com\/en\/wp-json\/wp\/v2\/product_tag?post=92506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}